Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
hoc vieng » hoc tieng, hoc hien, hoc viet
trong hai » trong thai, trong tai, trong hoat
hoc vien » hoc hien, hoc viet, hoc tieng
trung ha » trung hoc, trung tam, trung cap
cong ban » cong bang, cong san, cong tan
ban than » ban thanh, van thanh, ban hang
than cau » toan cau, phan cau, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc vien) or (hoc vieng)) anh - thanh ((trong hai) or (trung ha)) thuong cong ban than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc vien) OR (hoc vieng)) anh - thanh ((trong hai) OR (trung ha)) thuong cong ban than cau.
• Adding a wildcard symbol may retrieve word variants: ((hoc vien) or (hoc vieng)) anh - thanh ((trong hai) or (trung ha)) thuong cong ban than cau*.