Perhaps you should try some spelling variations:
vay doanh » van doanh, ly doanh, voi doanh
su triet » su viet, su tien, ve triet
va doanh » van doanh, va danh, hoa doanh
cam luc » cam xuc, cau luc
thu sac » thu sach, thu san, thu xac
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
sac ky » cac ky, sai ky
ve cam » ve cham, ve cac, va cam

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 ((nang xa) or (nang cao)) hoi. hieu ve cam luc ((va doanh) or (vay doanh)) va su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sac ky ((nang xa) OR (nang cao)) hoi. hieu ve cam luc ((va doanh) OR (vay doanh)) va su triet.
• Adding a wildcard symbol may retrieve word variants: thu sac ky ((nang xa) or (nang cao)) hoi. hieu ve cam luc ((va doanh) or (vay doanh)) va su triet*.