Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
doanh van » doan van, doanh va, doanh ban
va doanh » van doanh, vay doanh, va danh
te sach » toc sach
cua tre » cua te, dua tren, cua thep
cuu tre » cau tren, cau treo
sach ty » sach y, sach tu, sach thu
cac toc » cac toi, cac nuoc, cac thoi
hieu ve » hieu va, hieu van
nang ma » tang ma, sang ma, nang cao
ty nang » ky nang, ty xang, ty hang
ve cac » va cac, vien cac
ma hoi » mai hoi, xa hoi, ma hoa
toc va » hoc va, toc ta, tuc va

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 ty nang ma hoi. hieu ve cac toc va doanh van ((((cua tre) or (cua triet))) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty nang ma hoi. hieu ve cac toc va doanh van ((((cua tre) OR (cua triet))) OR (cuu tre))*.