Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
thanh tung » thanh cong
doi chieu » doc hieu, doi chi, ho chieu
dung cong » dung trong
huy toan » huy tran, huu toan, huy hoang
ap dung » xay dung, van dung
ty toan » ly toan, tap toan, tam toan

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 - ((thanh trung) or (thanh tung)) ap dung cong ((ty toan) OR (huy toan)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - ((thanh trung) OR (thanh tung)) ap dung cong ((ty toan) OR (huy toan)) tap*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu xanh - ((thanh trung) or (thanh tung)) ap dung cong ((ty toan) OR (huy toan)) tap*".