Perhaps you should try some spelling variations:
nhanh thang » nhanh thanh, nhanh quang, hanh trang
nhanh mang » nhanh lang, nhanh quang, nhan dang
nhung cong » dung cong, thong cong, hang cong
hieu lang » chieu sang, hieu quang, nhieu tang
hanh mang » hanh trang, nhanh lang, thanh hang
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan cau » toan cao, toan ban, toan tap
ho hieu » ho chieu, hoi hieu, nho hieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho hieu lang - ((((hanh mang) or (nhanh mang))) or (nhanh thang)) va nhung cong tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - ((((hanh mang) OR (nhanh mang))) OR (nhanh thang)) va nhung cong tan toan cau.
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - ((((hanh mang) or (nhanh mang))) or (nhanh thang)) va nhung cong tan toan cau*.