Perhaps you should try some spelling variations:
thanh tran » thanh trang, thanh toan, thanh tra
chieu xanh » chieu sach, chieu sang, chieu tinh
nhung cong » thong cong, hang cong, nhung don
doi chieu » doc hieu, doi chi, ho chieu
dung cong » dung trong
hanh tam » thanh tam, nhanh tam, hanh tram
tam toan » tap toan, tam than, pham toan
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu xanh - ((hanh tam) or (thanh tran)) va ((nhung cong) OR (dung cong)) tam toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - ((hanh tam) OR (thanh tran)) va ((nhung cong) OR (dung cong)) tam toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu xanh - ((hanh tam) or (thanh tran)) va ((nhung cong) OR (dung cong)) tam toan tap".
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - ((hanh tam) or (thanh tran)) va ((nhung cong) OR (dung cong)) tam toan tap*.