Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
tu sach » thu sach, su sach, te sach
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
nam xuc » cam xuc, nam xua, nam thuc
va hanh » van hanh, va thanh, va danh
lua tre » cua tre, luy tre, dua tren
xuc va » duc va, tuc va, luc va
cua te » cua tu

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 (vu bach)) ky lang xa hoi. hieu van nam xuc va hanh vi ((lua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (vu bach)) ky lang xa hoi. hieu van nam xuc va hanh vi ((lua tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (vu bach)) ky lang xa hoi. hieu van nam xuc va hanh vi ((lua tre) or (cua te))*.