Perhaps you should try some spelling variations:
vay doanh » van doanh, ly doanh, voi doanh
lang van » dang van, tang van, hoang van
va doanh » van doanh, va danh, hoa doanh
tu sach » thu sach, su sach, te sach
cua cua » cua chua, ca cua, qua cua
vu cham » va cham, vu kham, tu cham
ve cham » va cham, ve chat, ve chim
van hoi » van hoa, van hoc, van hoe
cua tre » cua te, cuu tre, cua triet
y lang » o lang, _ lang, tay lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach y lang van hoi. hieu ((ve cham) or (vu cham)) luc ((va doanh) OR (vay doanh)) cua cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y lang van hoi. hieu ((ve cham) OR (vu cham)) luc ((va doanh) OR (vay doanh)) cua cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y lang van hoi. hieu ((ve cham) or (vu cham)) luc ((va doanh) OR (vay doanh)) cua cua tre*".