Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
sach thu » sach thue, sach thieu, sach tham
truc va » thuc va, thuc vat, trung va
sach ly » sach y, sach lo, sach ty
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
ve cam » ve cham, ve cac, va cam
xuc va » duc va, tuc va, luc va
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu ((sach ly) or (sach thu)) nang xa hoi. hieu ve cam ((xuc va) or (truc va)) hanh vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu ((sach ly) OR (sach thu)) nang xa hoi. hieu ve cam ((xuc va) OR (truc va)) hanh vi cua triet.
• Adding a wildcard symbol may retrieve word variants: vu ((sach ly) or (sach thu)) nang xa hoi. hieu ve cam ((xuc va) or (truc va)) hanh vi cua triet*.