Perhaps you should try some spelling variations:
day thanh » dao thanh, dat thanh, da thanh
thanh vi » hanh vi, thanh va, thanh ve
thuc day » thuc dan, thuc vat
te sach » toc sach
ve cham » va cham, ve chat, vu cham
cua duc » cua tuc, cua nuoc, cua quoc
van hoc » van hoa
van hoi » van hoa, van hoe, van loi
y dang » ky dang, 2 dang, _ dang
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 y dang ((van hoi) or (van hoc)). hieu ((ve cai) or (ve cham)) thuc day thanh vi cua duc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y dang ((van hoi) OR (van hoc)). hieu ((ve cai) OR (ve cham)) thuc day thanh vi cua duc.
• Adding a wildcard symbol may retrieve word variants: te sach y dang ((van hoi) or (van hoc)). hieu ((ve cai) or (ve cham)) thuc day thanh vi cua duc*.