Perhaps you should try some spelling variations:
thong tinh » thuong tinh, thong tin, thong minh
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh dang » hanh dong, hanh dung, hanh mang
cua thong » cua thuong, cua khong, cua tong
ho chieu » theo chieu, hoc thieu, doi chieu
anh dang » anh dong, anh dung, anh bang
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: ho chieu xanh - ((hanh dang) or (anh dang)) cua thong thong tinh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - ((hanh dang) OR (anh dang)) cua thong thong tinh toan cau*.