Perhaps you should try some spelling variations:
doanh van » doan van, doanh va, doanh ban
cua triet » cua viet, su triet, va triet
lang hoa » hang hoa, lang ha, nang hoa
nam thuc » nam thuoc, am thuc, nam thu
danh vai » danh sai, danh va, dang van
te sach » toc sach
sach ky » sac ky, sach y, sach ty
ky lang » ky nang, ky dang, ky tang
hoa hoi » khoa hoi, hoa hoc, hoa doi
hieu ve » hieu va, hieu van
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 lang hoa hoi. hieu ve nam thuc vat ((danh vai) OR (doanh van)) cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky lang hoa hoi. hieu ve nam thuc vat ((danh vai) OR (doanh van)) cua triet".
• Adding a wildcard symbol may retrieve word variants: te sach ky lang hoa hoi. hieu ve nam thuc vat ((danh vai) OR (doanh van)) cua triet*.