Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trinh » canh tranh, hanh chinh
trinh thi » trinh tai, dinh thi, trinh tu
bang cong » dang cong, bang song, hang cong
ho chieu » theo chieu, hoc thieu, doi chieu
toan tap » toan ban
pha tap » pham tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu xanh - hanh trinh thi ((nang song) or (bang cong)) trinh ((pha tap) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - hanh trinh thi ((nang song) OR (bang cong)) trinh ((pha tap) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - hanh trinh thi ((nang song) or (bang cong)) trinh ((pha tap) or (toan tap))*.