Perhaps you should try some spelling variations:
hoc chieu » hoc thieu, ho chieu, hoc dieu
hanh tang » hanh trang, anh tang, hanh mang
cua nhung » va nhung
tang cua » mang cua, hang cua, tang luan
cong ban » cong bang, cong tan, cong dan
cong san » cong tac
than ban » thanh ban, toan ban, than man

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 (hoc hien)) xanh - hanh tang cua nhung ((cong ban) or (cong san)) than ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc chieu) OR (hoc hien)) xanh - hanh tang cua nhung ((cong ban) OR (cong san)) than ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc chieu) OR (hoc hien)) xanh - hanh tang cua nhung ((cong ban) or (cong san)) than ban".
• Adding a wildcard symbol may retrieve word variants: ((hoc chieu) OR (hoc hien)) xanh - hanh tang cua nhung ((cong ban) or (cong san)) than ban*.