Perhaps you should try some spelling variations:
thu tai » tu tai, tru tai, thu hai
nang xa » nang x, lang xa, nang ma
van cac » van cau, van bac, dan cac
van hac » van hoc, van ha, van hai
va danh » va dinh, va dan, va hanh
doi cua » dai cua
hoi cua » hoi chuc
tai ky » thai ky, trai ky, sai ky

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

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