Perhaps you should try some spelling variations:
hanh dai » hanh tai, hanh dao, vanh dai
hieu ve » hieu va, hieu van
cam duc » cam xuc, cao duc, pham duc
va hanh » van hanh, va thanh, va danh
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
ve cam » ve cham, ve cac, va cam
cua tu » cua tuc, cua cu, cua te
cua su » qua su
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: tu sac ky nang ((xa hoi) or (o hoi)). hieu ve cam duc va hanh dai ((cua tu) or (cua su))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang ((xa hoi) OR (o hoi)). hieu ve cam duc va hanh dai ((cua tu) OR (cua su)).
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang ((xa hoi) or (o hoi)). hieu ve cam duc va hanh dai ((cua tu) or (cua su))*.