Perhaps you should try some spelling variations:
doanh vai » doanh tai, doanh va, doanh van
ban doanh » van doanh, san doanh, ban danh
su triet » su viet, su tien, ve triet
lang van » dang van, tang van, hoang van
cuu tre » cua tre, cau tren, cau treo
cau cua » cau qua, ca cua, cu cua
hieu ve » hieu va, hieu van
van hoi » van hoa, van hoc, van hoe
ky lang » ky nang, ky dang, ky tang
tu sanh » tu hanh, tu manh, tu anh
ve cau » ke cau, va cau, ve cac
tu san » thu san, tu ban, tu can

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu san) or (tu sanh)) ky lang van hoi. hieu ve cau cua ban doanh vai ((cuu tre) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu san) OR (tu sanh)) ky lang van hoi. hieu ve cau cua ban doanh vai ((cuu tre) OR (su triet)).
• Adding a wildcard symbol may retrieve word variants: ((tu san) or (tu sanh)) ky lang van hoi. hieu ve cau cua ban doanh vai ((cuu tre) or (su triet))*.