Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
vay doanh » van doanh, ly doanh, voi doanh
xay doanh » ly doanh, van doanh, cac doanh
ban cua » ban quan
sach ky » sac ky, sach ty, sach kem
hieu ve » hieu va, hieu van
nang ma » tang ma, sang ma, nang cao
ma hoi » mai hoi, xa hoi, ma hoa
ve nam » he nam, va nam, le nam

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