Perhaps you should try some spelling variations:
thu san » thuy san, phu san, thuat san
thu ban » thu hang
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
cac duc » cac du, cao duc, cac dac
va hanh » van hanh, va thanh, va danh
doi cua » dai cua, hoi cua, dong cua
ve cac » va cac, vien cac
di cua » dai cua, de cua, do cua

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

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