Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
vu kham » vu khanh
va hanh » van hanh, va thanh, va danh
vai cua » dai cua, hai cua, lai cua
nang o » nang co, nang ho, nang ro
ve cam » ve cham, ve cac, va cam
cua te » cua tu
o hoi » co hoi, o hoc, o hai

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 o hoi. hieu ((ve cam) or (vu kham)) duc va hanh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang o hoi. hieu ((ve cam) OR (vu kham)) duc va hanh vai cua te.
• Adding a wildcard symbol may retrieve word variants: su sach ky nang o hoi. hieu ((ve cam) or (vu kham)) duc va hanh vai cua te*.