Perhaps you should try some spelling variations:
thanh phan » thanh pho, thanh san, thanh toan
hieu van » hieu va, thien van, lieu va
phan cua » nhan cua, than cua, phat cua
cam tuc » cam tu, nam thuc, dam thuc
vu sach » vu bach, su sach, vu khach
sach ky » sac ky, sach y, sach ty
cua tu » cua tuc, cua su, cua cu
o hoc » co hoc, mo hoc, so hoc
o hoi » co hoi, o hai, o hoa

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 ((o hoi) or (o hoc)). hieu van ((cam tuc) or (cam xuc)) gia thanh phan cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ky nang ((o hoi) OR (o hoc)). hieu van ((cam tuc) OR (cam xuc)) gia thanh phan cua tu.
• Adding a wildcard symbol may retrieve word variants: vu sach ky nang ((o hoi) or (o hoc)). hieu van ((cam tuc) or (cam xuc)) gia thanh phan cua tu*.