Perhaps you should try some spelling variations:
hoc chieu » hoc thieu, hoc hien, hoc dieu
hanh hang » thanh hang, hang hang, hanh han
ho chieu » theo chieu, hoc thieu, doi chieu
va thong » va thuong, va phuong, he thong
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
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) or (ho chieu)) xanh - hanh hang va thong ((cong dan) or (cong tan)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc chieu) OR (ho chieu)) xanh - hanh hang va thong ((cong dan) OR (cong tan)) toan ban.
• Adding a wildcard symbol may retrieve word variants: ((hoc chieu) or (ho chieu)) xanh - hanh hang va thong ((cong dan) or (cong tan)) toan ban*.