Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
hanh vai » hanh vi, hanh va, hanh tai
thu sac » thu sach, thu san, thu xac
nang xa » nang x, lang xa, nang ma
van hac » van hoc, van ha, van hai
va hanh » van hanh, va thanh, va danh
cua tre » cuu tre, cua triet, dua tren
sac ky » cac ky, sai ky
hac bo » bac bo, hoc bo, cac bo
cua te » cua tu
bo va » bao va, do va, so va

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sac ky nang xa hoi. hieu van hac bo va hanh vai ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sac ky nang xa hoi. hieu van hac bo va hanh vai ((cua tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: thu sac ky nang xa hoi. hieu van hac bo va hanh vai ((cua tre) or (cua te))*.