Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
chieu xanh » chieu sach, chieu sang, chieu tinh
trinh chan » trinh chuan, trinh han, trinh phan
hieu lang » chieu sang, hieu quang, nhieu tang
nang cong » dang cong, bang cong, hang cong
hoa toan » hoa tan, hop toan, hoa than
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((hieu lang) or (chieu xanh)) - hanh trinh chan ((nang cong) OR (nang song)) hoa toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu lang) OR (chieu xanh)) - hanh trinh chan ((nang cong) OR (nang song)) hoa toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((hieu lang) or (chieu xanh)) - hanh trinh chan ((nang cong) OR (nang song)) hoa toan cao".
• Adding a wildcard symbol may retrieve word variants: ho ((hieu lang) or (chieu xanh)) - hanh trinh chan ((nang cong) OR (nang song)) hoa toan cao*.