Perhaps you should try some spelling variations:
than trong » thang trong, thuan trong, tran trong
trong thpt » truong thpt, trong thuat, trong thiet
doi chieu » doc hieu, doi chi, mot chieu
phan cong » thanh cong
cong than » cong thanh, cong thang, cong tan
thpt phan » thuat phan, thpt thang, thpt dan
phan khan » phan phan, phan than, phan thanh
khan cap » khan ap, than cap, khoan cam

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) or (toc thieu)) sach - phan cong than trong thpt phan khan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (toc thieu)) sach - phan cong than trong thpt phan khan cap.
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (toc thieu)) sach - phan cong than trong thpt phan khan cap*.