Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
canh trinh » canh tranh, canh tinh, anh trinh
hanh trinh » canh tranh, hanh chinh
thong cong » trong cong, tong cong, thong thong
doi chieu » doc hieu, doi chi, ho chieu
va thong » va thuong, va phuong, he thong
ty pham » my pham, tac pham, toi pham
pham tu » phan tu, pham thi, pham tai

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) OR (hanh trinh)) va thong cong ty pham tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu xanh - ((canh trinh) OR (hanh trinh)) va thong cong ty pham tu".
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - ((canh trinh) OR (hanh trinh)) va thong cong ty pham tu*.