Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
dung cong » dung trong
cong tinh » cong trinh, cong vinh, long tinh
tung cua » trung cua, tuong cua, tang cua
dung cua » dung luan, dung cho
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 xanh - thanh ((tung cua) or (dung cua)) dung cong tinh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh ((tung cua) OR (dung cua)) dung cong tinh toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh ((tung cua) or (dung cua)) dung cong tinh toan cau*.