Perhaps you should try some spelling variations:
lua tren » dua tren, la tren, quan tren
hieu van » hieu va, thien van, lieu va
chat xuc » chat huu, cam xuc, chao xu
lang van » dang van, tang van, hoang van
va hanh » van hanh, va thanh, va danh
tu sach » thu sach, su sach, te sach
hieu ve » hieu va
van hoi » van hoa, van hoc, van hoe
ky lang » ky nang, ky dang, ky tang
xuc va » duc va, tuc va, luc va
vi lua » vi luu

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 hoach)) ky lang van hoi. ((hieu ve) or (hieu van)) chat xuc va hanh vi lua tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu hoach)) ky lang van hoi. ((hieu ve) OR (hieu van)) chat xuc va hanh vi lua tren.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thu hoach)) ky lang van hoi. ((hieu ve) or (hieu van)) chat xuc va hanh vi lua tren*.