Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh vat » trinh vat, tranh va, tranh van
dung cong » dung trong
thanh tap » thanh lap, thanh tai, thanh tay
vat dung » van dung, va dung, viet dung
cong van » cong vang, cong san, song van
thuy » thu, thuc

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) OR (chieu sach)) - hanh tranh vat dung cong van ((thanh tap) or (thanh thuy))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (chieu sach)) - hanh tranh vat dung cong van ((thanh tap) OR (thanh thuy)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu xanh) OR (chieu sach)) - hanh tranh vat dung cong van ((thanh tap) or (thanh thuy))".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) OR (chieu sach)) - hanh tranh vat dung cong van ((thanh tap) or (thanh thuy))*.