Perhaps you should try some spelling variations:
manh thong » anh thong, manh tuong, mang thong
nghien cu » nghien cuu, nghiep cua, nghiep cau
luong suc » luong duc, luong su, duong suc
thong hoc » thuong hoc, tuong hoc, thong hoa
thanh van » thanh san, thanh toan, thanh phan
thanh hoa » thanh pho
hanh hoc » thanh hoc, hinh hoc, anh hoc
cu luong » cat luong, huy luong, do luong
tu hanh » du hanh, lu hanh, thuc hanh
hai van » thai van, ha van, hai tan
hoc xa » hoc ma
xa hai » xa thai, xua hai, xa hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu hanh hoc tap, nghien cu luong suc manh thong hoc xa hai van ((thanh van) or (thanh hoa))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu hanh hoc tap, nghien cu luong suc manh thong hoc xa hai van ((thanh van) OR (thanh hoa)).
• Adding a wildcard symbol may retrieve word variants: tu hanh hoc tap, nghien cu luong suc manh thong hoc xa hai van ((thanh van) or (thanh hoa))*.