Perhaps you should try some spelling variations:
van doanh » toan doanh, van dong, van thanh
thu sach » tu sach, thuat sach, thuoc sach
pham cuc » pham chuc, pham duc, pham cua
cuc van » chuc van, cuu van, cac van
ve pham » vi pham, v pham, ve phan
hieu ve » hieu va, hieu van
ky tang » ky nang, kho tang, ky trong
ky dang » ky nang, ky danh
vi cua » vai cua
di cua » dai cua, doi cua, de cua

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 ((ky dang) or (ky tang)) xa hoi. hieu ve pham cuc van doanh ((vi cua) or (di cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ((ky dang) OR (ky tang)) xa hoi. hieu ve pham cuc van doanh ((vi cua) OR (di cua)) tre.
• Adding a wildcard symbol may retrieve word variants: thu sach ((ky dang) or (ky tang)) xa hoi. hieu ve pham cuc van doanh ((vi cua) or (di cua)) tre*.