Perhaps you should try some spelling variations:
thieu tang » nhieu tang, thieu khang, thieu quang
thong cong » trong cong, tong cong, thong thong
hoc thieu » toc thieu, hoc hien
trung cua » truong cua, trung tuan, trung cap
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 thieu tang - hanh ((trung 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 thieu tang - hanh ((trung cua) OR (tranh cua)) thong cong tac ((than cau) OR (phan tu)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu tang - hanh ((trung cua) or (tranh cua)) thong cong tac ((than cau) or (phan tu))*.