I think the search algorithm for Chinese is somehow not correct. In Mark.4:12-13, there are TWO strings "不明白" (see below), but logos6 can only find ONE. Nether inline search nor general search can give correct result.
Also, I try to separate "不明白" to "不" and "明白". However, the result is still the same and not correct. I hope this only affects Chinese search. Otherwise search in logos is not reliable.
Mark.4:12-13 12 叫他們 看是看見,卻不曉得; 聽是聽見,卻不明白; 恐怕他們回轉過來,就得赦免。」 13 又對他們說:「你們不明白這比喻嗎?這樣怎能明白一切的比喻呢?