Perhaps you should try some spelling variations:
cau triet » cau trieu, su triet, cua triet
doanh van » doan van, doanh va, doanh ban
va doanh » van doanh, vay doanh, va danh
thu sach » tu sach, thuat sach, thuoc sach
hieu va » lieu va, hieu qua
thu ban » thu hang
chu tre » cho tre, chu tri, cuu tre
cac lao » ca lao, cac loai, cac giao
lao va » tao va, cao va, bao va
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thu sach) or (thu ban)) ky nang x hoi. hieu va cac lao va doanh van ((chu tre) or (cau triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (thu ban)) ky nang x hoi. hieu va cac lao va doanh van ((chu tre) OR (cau triet)).
• Adding a wildcard symbol may retrieve word variants: ((thu sach) or (thu ban)) ky nang x hoi. hieu va cac lao va doanh van ((chu tre) or (cau triet))*.