Perhaps you should try some spelling variations:
truong dong » trong dong, truong dang, tuong dong
thuyet dan » thuyet bai, truyen dan, thuyet xac
cua truong » cua trung, xuan truong, cac truong
manh hung » anh huong
hung cua » huong cua, chung cua, khung cua
dong tan » duong tan, dong tai, dong san
tan toan » tan tran, tap toan, van toan
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thuyet dan) or (thuyet va)) - manh hung cua truong dong tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thuyet dan) OR (thuyet va)) - manh hung cua truong dong tan toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((thuyet dan) or (thuyet va)) - manh hung cua truong dong tan toan cau*.