Perhaps you should try some spelling variations:
thanh dung » thanh duong, thanh tung, thanh hung
trong dang » truong dang, trong dan, trong dong
hien xanh » hien hanh, hien nhanh, chieu xanh
dang cong » dung cong
cong tam » cong tac, cong tan, cong nam
tam toan » tap toan, tam than, pham 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 hien xanh - thanh dung trong dang cong tam toan cau~.
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - thanh dung trong dang cong tam toan cau*.