Perhaps you should try some spelling variations:
vien chat » van chat, vien cac, vien cao
hieu vien » hieu hien, hieu viec, thieu nien
nang ma » tang ma, sang ma, nang cao
danh co » danh cho, doanh co, anh co
tu san » thu san, tu ban, tu can
cua tu » cua tuc, cua cu, cua te
cua su » qua su
luc va » duc va, tuc va, loc va
san ky » sang ky, van ky, dan ky
xuc va » duc va, tuc va, xac va
ma hoi » mai hoi, xa hoi, ma hoa

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

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