Perhaps you should try some spelling variations:
doanh van » doan van, doanh va, doanh ban
thien van » thi van
nam duoc » nam thuoc, dat duoc, nam moc
va doanh » van doanh, vay doanh, va danh
da duoc » tao duoc, hoa duoc
nang xa » nang x, lang xa, mang xa
van cua » vang cua, ban cua, dan cua
nang ma » tang ma, sang ma, nang cao
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sac ky ((nang xa) or (nang ma)) hoi. thien van ((nam duoc) OR (da duoc)) va doanh van cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky ((nang xa) OR (nang ma)) hoi. thien van ((nam duoc) OR (da duoc)) va doanh van cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky ((nang xa) or (nang ma)) hoi. thien van ((nam duoc) OR (da duoc)) va doanh van cua te".
• Adding a wildcard symbol may retrieve word variants: te sac ky ((nang xa) or (nang ma)) hoi. thien van ((nam duoc) OR (da duoc)) va doanh van cua te*.