Perhaps you should try some spelling variations:
doanh vien » doanh tien, doanh chien, thanh vien
hieu quan » hieu qua, lieu quan, thien quan
cac trung » cac truong, dac trung, bac trung
danh vien » danh viet, dan vien, danh kien
quan cac » quanh cac, qua cac, quan cau
trung va » truong va, trang va, trung ha
thu sac » thu sach, thu san, thu xac
ky dang » ky nang, ky danh
dang xa » dang xay, lang xa, dang ha
sac ky » cac ky, sai ky

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 ky dang xa hoi. hieu quan cac trung va ((danh vien) or (doanh vien)) cac tro~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sac ky dang xa hoi. hieu quan cac trung va ((danh vien) OR (doanh vien)) cac tro.
• Adding a wildcard symbol may retrieve word variants: thu sac ky dang xa hoi. hieu quan cac trung va ((danh vien) or (doanh vien)) cac tro*.