Perhaps you should try some spelling variations:
vay doanh » van doanh, ly doanh, voi doanh
cham cuu » cap cuu, chat cua
va doanh » van doanh, va danh, hoa doanh
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
va cham » va chat, va tham
tai cuu » tai buu, tai cua, thai cua
te bai » te bao, te tai, te ban
bai ky » ban ky, sai ky, bac ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: te bai ky lang xa hoi. hieu va cham cuu ((va doanh) or (vay doanh)) ((tai cuu) OR (tai cuc)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te bai ky lang xa hoi. hieu va cham cuu ((va doanh) OR (vay doanh)) ((tai cuu) OR (tai cuc)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te bai ky lang xa hoi. hieu va cham cuu ((va doanh) or (vay doanh)) ((tai cuu) OR (tai cuc)) tre".
• Adding a wildcard symbol may retrieve word variants: te bai ky lang xa hoi. hieu va cham cuu ((va doanh) or (vay doanh)) ((tai cuu) OR (tai cuc)) tre*.