Perhaps you should try some spelling variations:
thuy san » thuat san, thuy anh
thu san » thu ban, phu san, thuat san
cac duc » cao duc, cac dac, cac nuoc
hanh di » hanh vi, hanh de, hang di
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
va hanh » van hanh, va thanh, va danh
di cua » dai cua, doi cua, de cua
cua tu » cua tuc, cua su, cua cu

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 (thuy san)) ky nang xa hoi. hieu ve ((cac duc) OR (cac du)) va hanh di cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu san) OR (thuy san)) ky nang xa hoi. hieu ve ((cac duc) OR (cac du)) va hanh di cua tu*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu san) or (thuy san)) ky nang xa hoi. hieu ve ((cac duc) OR (cac du)) va hanh di cua tu*".