Perhaps you should try some spelling variations:
dang van » hoang van, hang va
thuc dan » thuc hanh, hoc dan, thuc vat
hanh dai » hanh tai, hanh dao, vanh dai
vu sach » vu bach, su sach, vu khach
sach ky » sac ky, sach y, sach ty
ky dang » ky nang, ky danh
hieu ve » hieu va, hieu van
dai huu » dao huu, dai hau, dai thua
huu tre » huu tri, cuu tre, huu them
ve cam » ve cham, ve cac, va cam
tuc va » thuc va, truc va, tuc xa

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach ky dang van hoa. hieu ve cam ((tuc va) or (thuc dan)) hanh dai huu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ky dang van hoa. hieu ve cam ((tuc va) OR (thuc dan)) hanh dai huu tre*.