Perhaps you should try some spelling variations:
chieu sang » chieu sach, hieu lang, nhieu tang
chieu xanh » chieu sach, chieu tinh, hieu manh
hanh trinh » canh tranh, hanh chinh
trinh chua » trinh chuan, trinh cua, trinh chu
dung cong » dung trong
dan chan » dan gian, dan ca, van chat
chan cao » chan cho, chat cao, chay cao

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 sang) OR (chieu xanh)) - hanh trinh chua ((dang cong) or (dung cong)) dan chan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu sang) OR (chieu xanh)) - hanh trinh chua ((dang cong) OR (dung cong)) dan chan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu sang) OR (chieu xanh)) - hanh trinh chua ((dang cong) or (dung cong)) dan chan cao".
• Adding a wildcard symbol may retrieve word variants: doi ((chieu sang) OR (chieu xanh)) - hanh trinh chua ((dang cong) or (dung cong)) dan chan cao*.