Perhaps you should try some spelling variations:
hanh hai » thanh hai, nhanh hai, hang hai
tai khoi » tai khoa, mai khoi, tao khoi
su sach » so sach, vu sach
tai hoi » dai hoi, tai hai, tai hoe
cua tre » cuu tre, cua triet, dua tren
hieu ve » hieu va, hieu van
sach ky » sac ky, sach y, sach ty
cam luc » cam xuc, cau luc
va hanh » van hanh, va thanh, va danh
ve cam » ve cham, ve cac, va cam
luc va » duc va, tuc va, loc 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: su sach ky nang ((tai hoi) or (tai khoi)). hieu ve cam luc va hanh hai ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang ((tai hoi) OR (tai khoi)). hieu ve cam luc va hanh hai ((cua tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: su sach ky nang ((tai hoi) or (tai khoi)). hieu ve cam luc va hanh hai ((cua tre) or (cua te))*.