Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
doi chieu » doc hieu, ho chieu, mot chieu
trinh qua » trinh quan, trinh cua, trinh quang
dung cong » dung trong
hoan phan » hoa phan, toan phan, hoan thanh
doan phan » doanh phan, toan phan, dan phan
qua dung » quang dung, su dung, qua song
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doi chieu) or (doi chi)) xanh - hanh trinh qua dung cong ((hoan phan) or (doan phan)) tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (doi chi)) xanh - hanh trinh qua dung cong ((hoan phan) OR (doan phan)) tu.
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (doi chi)) xanh - hanh trinh qua dung cong ((hoan phan) or (doan phan)) tu*.