Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
voi doanh » von doanh, tri doanh, hoa doanh
cham luc » cham soc, nhan luc, cham cuu
hieu vu » hieu va, hieu ve, hieu su
nang xa » nang x, lang xa, mang xa
tai cua » thai cua, tai cuc, tri cua
nang ma » sang ma, nang cao, mang may
luc voi » luc moi, luc doi, luc khoi
tang ma » mang may, tang van
vu cham » va cham, vu kham, tu cham
tu sac » tu sach, tu cac, tu san
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: tu sac ky ((nang xa) or (((nang ma) OR (tang ma)))) hoi. hieu vu cham luc voi doanh tai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky ((nang xa) OR (((nang ma) OR (tang ma)))) hoi. hieu vu cham luc voi doanh tai cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky ((nang xa) or (((nang ma) OR (tang ma)))) hoi. hieu vu cham luc voi doanh tai cua triet".
• Adding a wildcard symbol may retrieve word variants: tu sac ky ((nang xa) or (((nang ma) OR (tang ma)))) hoi. hieu vu cham luc voi doanh tai cua triet*.