Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
hai cua » thai cua, dai cua, hoi cua
vai cua » dai cua, lai cua, bai cua
xa hanh » xa thanh, xa khanh, va hanh
van cac » van hac, van cau, van bac
nang xa » nang x, lang xa, nang ma
cac tu » cac thu, cach tu, cac du
cu dan » cua dan, ca dan, co dan
tu dan » tuc dan, tu ban, tu can
tu xa » tu xay, tu va, te xa

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

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