Perhaps you should try some spelling variations:
thuong cong » thong cong, thuong con, thuong dong
hoc tieng » hoc hien
trung hai » trung dai, trong hai, trung phan
hoc tien » hoc hien, hoc vien, hoc tren
trung ha » trung hoc, trung tam, trung cap
cong san » cong tac
san than » sang than, san thanh, ban than
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 tien) or (hoc tieng)) anh - thanh ((trung hai) OR (trung ha)) thuong cong san than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc tien) OR (hoc tieng)) anh - thanh ((trung hai) OR (trung ha)) thuong cong san than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc tien) or (hoc tieng)) anh - thanh ((trung hai) OR (trung ha)) thuong cong san than cau".
• Adding a wildcard symbol may retrieve word variants: ((hoc tien) or (hoc tieng)) anh - thanh ((trung hai) OR (trung ha)) thuong cong san than cau*.