Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
dinh trung » sinh trung, dinh trong, kinh trung
hanh trinh » canh tranh, hanh chinh
hang cong » dang cong, hang nong, bang cong
cong manh » cong danh, duong manh, cong thanh
manh toan » thanh toan, anh tuan, tinh toan
cua hang » cua dang, cua nhung, cua cong
toan ban » van ban

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chieu xanh) OR (chieu sang)) - ((dinh trung) or (hanh trinh)) cua hang cong manh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (chieu sang)) - ((dinh trung) OR (hanh trinh)) cua hang cong manh toan ban*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu xanh) OR (chieu sang)) - ((dinh trung) or (hanh trinh)) cua hang cong manh toan ban*".