Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
cong thanh » dong thanh, cong trinh, cong tan
thanh toan » thanh hoa, thanh san, tinh toan
hoc thieu » toc thieu, hoc hien
trung qua » trung quan, trong qua, truong quan
trung cua » truong cua, trung tuan, trung cap
dung cong » dung trong
toan cau » toan cao, toan ban, toan tap

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 xanh - thanh ((trung qua) or (trung cua)) dung cong thanh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh ((trung qua) OR (trung cua)) dung cong thanh toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh ((trung qua) or (trung cua)) dung cong thanh toan cau*.