Perhaps you should try some spelling variations:
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
cac tac » cac toc, cac bac, cac dac
va hanh » van hanh, va thanh, va danh
vai cua » dai cua, lai cua, bai cua
hai cua » thai cua, dai cua, hoi cua
tu can » tu ban, thu canh
ve cac » va cac, vien cac
tac va » tac da, tac xa, tuc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu can) OR (tu cac)) ky nang xa hoi. hieu ve cac tac va hanh ((vai cua) or (hai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu can) OR (tu cac)) ky nang xa hoi. hieu ve cac tac va hanh ((vai cua) OR (hai cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu can) OR (tu cac)) ky nang xa hoi. hieu ve cac tac va hanh ((vai cua) or (hai cua)) tre".
• Adding a wildcard symbol may retrieve word variants: ((tu can) OR (tu cac)) ky nang xa hoi. hieu ve cac tac va hanh ((vai cua) or (hai cua)) tre*.