Perhaps you should try some spelling variations:
trinh quan » trinh luat, trinh han
chieu xanh » chieu sach, chieu sang, chieu tinh
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
tinh cua » trinh cua, sinh cua, tinh chat
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh 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: ho chieu xanh - hanh ((tinh quang) or (((tinh cua) or (trinh quan)))) dung cong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - hanh ((tinh quang) OR (((tinh cua) OR (trinh quan)))) dung cong dan toan cau.
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - hanh ((tinh quang) or (((tinh cua) or (trinh quan)))) dung cong dan toan cau*.