Perhaps you should try some spelling variations:
dua tren » dung tren
lang van » dang van, tang van, hoang van
chat xuc » chat huu, cam xuc, chao xu
van chat » cao chat
hieu van » hieu va, thien van, lieu va
thu sach » thuat sach, thuoc sach, thu hoach
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 » dau tren, duc tren, tu tren
tu sach » su sach, te sach, tu cach
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (thu sach)) ky lang van hoi. hieu van chat xuc va hanh vi ((du tren) OR (dua tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) ky lang van hoi. hieu van chat xuc va hanh vi ((du tren) OR (dua tren))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (thu sach)) ky lang van hoi. hieu van chat xuc va hanh vi ((du tren) OR (dua tren))*".