Perhaps you should try some spelling variations:
trien quang » tran quang, tuyen quang, dien quang
thong cong » trong cong, tong cong, thong thong
hoc trien » hoc tren, hoc tien, hoc truyen
trang cua » tang cua, trung cua, thang cua
tranh cua » doanh cua, manh cua
cong tac » cong ty
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 trien quang - hanh ((trang cua) or (tranh cua)) thong cong tac ((than cau) or (phan tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc trien quang - hanh ((trang cua) OR (tranh cua)) thong cong tac ((than cau) OR (phan tu)).
• Adding a wildcard symbol may retrieve word variants: hoc trien quang - hanh ((trang cua) or (tranh cua)) thong cong tac ((than cau) or (phan tu))*.