Perhaps you should try some spelling variations:
trinh phan » trinh han, trinh quan, thanh phan
theo chua » theo chu, ho chua, cheo cua
chua xang » chua nang, chuc nang, chu bang
dung cong » dung trong
anh tang » anh bang, anh dang, anh nang
cua dung » cua dang, cua dong, qua dung
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: theo chua xang - ((anh tang) or (sach dung)) cua dung cong trinh phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chua xang - ((anh tang) OR (sach dung)) cua dung cong trinh phan cau.
• Adding a wildcard symbol may retrieve word variants: theo chua xang - ((anh tang) or (sach dung)) cua dung cong trinh phan cau*.