Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
hanh vai » hanh vi, hanh va, hanh tai
sach ky » sac ky, sach y, sach ty
te sach » toc sach
hieu ve » hieu va, hieu van
lang xa » lang ha, dang xay, lang van
ve cac » va cac, vien cac
xuc va » duc va, tuc va, xac va
luc va » duc va, tuc va, loc va
vai su » va su, van su, lai su

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky ((nang x) or (lang xa)) hoi. hieu ve cac ((xuc va) or (luc va)) hanh vai su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky ((nang x) OR (lang xa)) hoi. hieu ve cac ((xuc va) OR (luc va)) hanh vai su triet.
• Adding a wildcard symbol may retrieve word variants: te sach ky ((nang x) or (lang xa)) hoi. hieu ve cac ((xuc va) or (luc va)) hanh vai su triet*.