Perhaps you should try some spelling variations:
trong thuong » thong thuong, trong tuong, dong thuong
cong thuong » hang thuong
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
nhan luc » nang luc
dan than » dan chan, ban than, van 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 ((chieu xanh) or (chieu sang)) - doanh nhan luc ((trong thuong) OR (cong thuong)) dan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (chieu sang)) - doanh nhan luc ((trong thuong) OR (cong thuong)) dan than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu xanh) or (chieu sang)) - doanh nhan luc ((trong thuong) OR (cong thuong)) dan than cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) or (chieu sang)) - doanh nhan luc ((trong thuong) OR (cong thuong)) dan than cau*.