Perhaps you should try some spelling variations:
canh trinh » canh tranh, hanh trinh, canh tinh
doi chieu » doc hieu, ho chieu, mot chieu
trinh vat » trinh van, trinh luat, sinh vat
lang hong » liang hong, lang phong, lang dong
vat lang » va lang, van lang, vat mang
hong van » hoang van, thong van, phong van
toan cau » toan cao, toan tap, toan tai
toan ban » van ban
doi chi » doi khi

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) or (doi chi)) xanh - canh trinh vat lang hong van ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (doi chi)) xanh - canh trinh vat lang hong van ((toan cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (doi chi)) xanh - canh trinh vat lang hong van ((toan cau) or (toan ban))*.