Perhaps you should try some spelling variations:
canh trinh » canh tranh, hanh trinh, canh tinh
mang thong » mang trong, hang thuong, dang thuong
doi chieu » doc hieu, ho chieu, mot chieu
trinh vat » trinh van, trinh luat, sinh vat
thong van » trong van, thong va, thong quan
vat mang » va mang, sat mang, vat ran
toan cao » toan tap
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 mang thong van ((toan cao) 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 mang thong van ((toan cao) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (doi chi)) xanh - canh trinh vat mang thong van ((toan cao) or (toan ban))*.