Perhaps you should try some spelling variations:
hieu vien » hieu hien, hieu viec, thieu nien
hanh doi » thanh doi, hanh noi, hang doi
van hanh » van thanh, ban hanh, van anh
cac nuoc » cap nuoc, hoc nuoc, dat nuoc
cac xuc » cam xuc, chat xuc, cac cuoc
doi cua » dai cua, hoi cua
te sach » toc sach
sach lo » sach dao, sach doi, sach hoi
lang xa » lang ha, dang xay, lang van
nang xa » nang x, nang ma, mang xa
cua cu » cua chu, cua cau, cua su

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 lo ((nang xa) or (lang xa)) hoi. hieu vien ((cac xuc) or (cac nuoc)) van hanh doi cua cu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach lo ((nang xa) OR (lang xa)) hoi. hieu vien ((cac xuc) OR (cac nuoc)) van hanh doi cua cu.
• Adding a wildcard symbol may retrieve word variants: te sach lo ((nang xa) or (lang xa)) hoi. hieu vien ((cac xuc) or (cac nuoc)) van hanh doi cua cu*.