Perhaps you should try some spelling variations:
cua triet » cua viet, su triet
doanh ban » doanh bat, doanh van, doanh nhan
xay doanh » vay doanh, ly doanh, van doanh
va triet » va thiet, va trien, ve triet
thu xay » thau xay, thuc xay, tu xay
sach ky » sac ky, sach ty, sach kem
hieu le » hieu ve, hieu he, hieu ly
nang ma » tang ma, sang ma, nang cao
ma hoi » mai hoi, xa hoi, ma hoa
le nam » ly nam, he nam, le na

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

• Performing a fuzzy search may retrieve terms with similar spellings: te ((sach ky) or (sach y)) nang ma hoi. hieu le nam thu xay doanh ban ((cua triet) OR (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ky) OR (sach y)) nang ma hoi. hieu le nam thu xay doanh ban ((cua triet) OR (va triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ky) or (sach y)) nang ma hoi. hieu le nam thu xay doanh ban ((cua triet) OR (va triet))".
• Adding a wildcard symbol may retrieve word variants: te ((sach ky) or (sach y)) nang ma hoi. hieu le nam thu xay doanh ban ((cua triet) OR (va triet))*.