Perhaps you should try some spelling variations:
lang van » dang van, tang van, hoang van
thu sach » tu sach, thuat sach, thuoc sach
hieu van » hieu va, thien van, lieu va
van chat » cao chat
chat xuc » chat huu, cam xuc, chao xu
tu cach » tu cac
ky lang » ky nang, ky dang, ky tang
van hoi » van hoa, van hoc, van hoe
va hanh » van hanh, va thanh, va danh
du tren » dua tren, dau tren, duc tren
xuc va » duc va, tuc va, luc va
vi du » vi dum, va du, ve du

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu cach) or (thu sach)) ky lang van hoi. hieu van chat xuc va hanh vi du tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cach) OR (thu sach)) ky lang van hoi. hieu van chat xuc va hanh vi du tren.
• Adding a wildcard symbol may retrieve word variants: ((tu cach) or (thu sach)) ky lang van hoi. hieu van chat xuc va hanh vi du tren*.