Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, hieu ve
te sach » toc sach
duc ban » duc tan, duc van, dua ban
cuc ban » cua ban, cac ban, cuu ban
y nang » ky nang, ly nang, v nang
anh vu » hanh vu, anh tu, anh va
vu cua » hu cua, tu cua
cua te » cua tu
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: te sach y nang x hoi. ((hieu van) or (lieu va)) cam ((duc ban) or (cuc ban)) anh vu cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang x hoi. ((hieu van) OR (lieu va)) cam ((duc ban) OR (cuc ban)) anh vu cua te.
• Adding a wildcard symbol may retrieve word variants: te sach y nang x hoi. ((hieu van) or (lieu va)) cam ((duc ban) or (cuc ban)) anh vu cua te*.