Perhaps you should try some spelling variations:
thuong luong » theo luong, cong luong, thong thuong
hieu tinh » chieu tinh, lieu tinh, kieu tinh
trung cua » truong cua, trung tuan, trung cap
doc hieu » toc thieu, hoc thieu, hoc hien
tung cua » tuong cua, dung cua, tang cua
luong va » dung va
than cau » toan cau, than cap, thanh chau
phan cau » phan dau, phan cac, phan tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu tinh - thanh ((tung cua) OR (trung cua)) thuong luong va ((than cau) or (phan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu tinh - thanh ((tung cua) OR (trung cua)) thuong luong va ((than cau) OR (phan cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu tinh - thanh ((tung cua) OR (trung cua)) thuong luong va ((than cau) or (phan cau))".
• Adding a wildcard symbol may retrieve word variants: doc hieu tinh - thanh ((tung cua) OR (trung cua)) thuong luong va ((than cau) or (phan cau))*.