Perhaps you should try some spelling variations:
vien cua » viec cua, dien cua, tien cua
thu sac » thu sach, thu xac, thu dac
thu san » thuy san, thu ban, phu san
nang xa » nang x, lang xa, nang ma
va nhan » van nhan, ca nhan, va phan
ve cao » ve bao, ve cac, ve co
va cao » va cac, va co, va dao
cua te » cua tu
su va » su van, tu va

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

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