Perhaps you should try some spelling variations:
truong cao » truong dai
trinh phan » trinh han, trinh quan, thanh phan
trung cap » trung tam
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
doc hieu » toc thieu, hoc thieu, hoc hien
phan cau » phan dau, phan cac, phan tu

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) or (doc hieu)) xanh - thanh ((trung cap) or (truong cao)) dung cong trinh phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doc hieu)) xanh - thanh ((trung cap) OR (truong cao)) dung cong trinh phan cau.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (doc hieu)) xanh - thanh ((trung cap) or (truong cao)) dung cong trinh phan cau*.