Perhaps you should try some spelling variations:
dinh lam » dinh van, tinh lao
hanh lam » thanh lap, hanh kem
thi hanh » thi thanh
tu sach » thu sach, su sach, tu cach
cam tuc » cam xuc, cam tu, nam thuc
hieu va » lieu va, hieu qua
hanh va » hang va, hanh vi
te sach » toc sach
va cam » va cham, va cac, va cao
va hoi » xa hoi, va hoc, va hoa
tuc va » thuc va, truc va, tuc xa
thiet » thieu

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 (te sach)) thi hanh va hoi. hieu va cam tuc va ((hanh lam) or (dinh lam)) va thiet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) thi hanh va hoi. hieu va cam tuc va ((hanh lam) OR (dinh lam)) va thiet.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (te sach)) thi hanh va hoi. hieu va cam tuc va ((hanh lam) or (dinh lam)) va thiet*.