Perhaps you should try some spelling variations:
thanh trung » thanh tung
duong cong » dung cong, luong cong, duong trong
hoc thieu » toc thieu
trung cua » truong cua, trung tuan, trung cap
cua duong » cua dong, cua huong, qua duong
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
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) or (hoc hien)) xanh - thanh trung cua duong cong tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (hoc hien)) xanh - thanh trung cua duong cong tan toan cau.
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (hoc hien)) xanh - thanh trung cua duong cong tan toan cau*.