Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
sach thu » sach thue, sach thieu, sach tham
thu tang » thu trang, thu thang, thu hang
cham duc » pham duc, cham soc, pham duy
hanh lam » thanh lap, hanh va, dinh lam
dua tren » dung tren
su sach » so sach, vu sach
tang ma » mang may, tang van
hieu vu » hieu va, hieu ve, hieu su
vu cham » va cham, vu kham, tu cham
ma hoi » mai hoi, xa hoi, ma hoa
kem » kiem

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach thu tang ma hoi. hieu vu cham duc va ((hanh lam) or (hanh kem)) ((dua tren) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach thu tang ma hoi. hieu vu cham duc va ((hanh lam) OR (hanh kem)) ((dua tren) OR (cua triet)).
• Adding a wildcard symbol may retrieve word variants: su sach thu tang ma hoi. hieu vu cham duc va ((hanh lam) or (hanh kem)) ((dua tren) or (cua triet))*.