Perhaps you should try some spelling variations:
khong hoang » khung hoang, thong hoang, khong hoan
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh dung » thanh dung, anh dung, hanh dong
cua khong » hua khong, cua phuong, cua thuong
hoang van » hang va
ho chieu » theo chieu, hoc thieu, doi chieu
dung cua » dung luan, dung cho
luan ban » luan van, luan san, luan han
toan ban » van ban

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - hanh dung cua khong hoang van ((luan ban) OR (toan ban))~.
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - hanh dung cua khong hoang van ((luan ban) or (toan ban))*.