Perhaps you should try some spelling variations:
day nhanh » day thanh, duy nhanh, dac nhan
dang van » hoang van, hang va
day hanh » day thanh, dao hanh, day manh
te sach » toc sach
ve cham » va cham, ve chat, vu cham
van hoi » van hoa, van hoc, van hoe
cua duc » cua tuc, cua nuoc, cua quoc
ve cai » va cai, ve cac, ve tai
vi cua » vai cua, di cua

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 _ dang van hoi. hieu ((ve cai) or (ve cham)) thuc ((day hanh) or (day nhanh)) vi cua duc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach _ dang van hoi. hieu ((ve cai) OR (ve cham)) thuc ((day hanh) OR (day nhanh)) vi cua duc.
• Adding a wildcard symbol may retrieve word variants: te sach _ dang van hoi. hieu ((ve cai) or (ve cham)) thuc ((day hanh) or (day nhanh)) vi cua duc*.