Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
quan trong » gian trong
doi chieu » doc hieu, doi chi, ho chieu
cua trong » cua truong, cua trung, qua trong
cong pham » cong phan, chong phap, cong ha
pham toan » pham tuan, pham tan, phap toan
toan ban » van ban

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 xanh - anh huong ((cua trong) or (quan trong)) cong pham toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - anh huong ((cua trong) OR (quan trong)) cong pham toan ban.
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - anh huong ((cua trong) or (quan trong)) cong pham toan ban*.