Perhaps you should try some spelling variations:
thuc dan » thuc hanh, hoc dan, thuc vat
vu sach » vu bach, su sach, vu khach
sach ky » sac ky, sach y, sach ty
hieu va » lieu va, hieu qua
truc va » thuc va, thuc vat, trung va
tai cua » thai cua, tai cuc, tri cua
va cam » va cham, va cac, va cao
cua tu » cua tuc, cua su, cua cu
x hoi » xa hoi, o hoi, x ho

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 nang x hoi. hieu va cam ((truc va) or (thuc dan)) dung tai cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ky nang x hoi. hieu va cam ((truc va) OR (thuc dan)) dung tai cua tu.
• Adding a wildcard symbol may retrieve word variants: vu sach ky nang x hoi. hieu va cam ((truc va) or (thuc dan)) dung tai cua tu*.