Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
canh trinh » canh tranh, hanh trinh, canh tinh
doi chieu » doc hieu, doi chi, ho chieu
vat nhung » va nhung, vai nhung, ve nhung
vap nhung » va nhung, ve nhung, voi nhung
cong van » cong vang, cong san, song van
phan cau » phan dau, phan cac, phan lap

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 - canh trinh ((vat nhung) or (vap nhung)) cong van ((phan cau) OR (phan tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - canh trinh ((vat nhung) OR (vap nhung)) cong van ((phan cau) OR (phan tu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu xanh - canh trinh ((vat nhung) or (vap nhung)) cong van ((phan cau) OR (phan tu))".
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - canh trinh ((vat nhung) or (vap nhung)) cong van ((phan cau) OR (phan tu))*.