Perhaps you should try some spelling variations:
lang van » dang van, tang van, hoang van
vien cua » viec cua, dien cua, tien cua
va nhan » van nhan, ca nhan, va phan
cao suc » cao su, cao duc
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
xac ky » cac ky, bac ky
ve cao » va cao, ve bao, ve cac
sac ky » cac ky, sai ky
suc va » duc va, tuc va, luc va
cua te » cua tu

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

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