Perhaps you should try some spelling variations:
van doanh » toan doanh, van dong, van thanh
ban hanh » ban hang
vinh cuu » dinh cuu, sinh cua, dinh cu
te sach » toc sach
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
y lang » o lang, _ lang, tay lang
ve cap » ve cac, le cap, ve cai
vi cuu » vi luu

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 y lang xa hoi. hieu ve cap cuu ((van doanh) or (ban hanh)) ((vi cuu) OR (vinh cuu)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y lang xa hoi. hieu ve cap cuu ((van doanh) OR (ban hanh)) ((vi cuu) OR (vinh cuu)) tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y lang xa hoi. hieu ve cap cuu ((van doanh) or (ban hanh)) ((vi cuu) OR (vinh cuu)) tre*".