Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hieu manh » chieu xanh, hieu nganh, dieu hanh
lanh manh » lanh tranh, lan anh, van manh
bang cong » dang cong, bang song, hang cong
cong tinh » cong trinh, cong vinh, long tinh
tinh khan » tinh khang, tinh than, tinh khac
manh cua » doanh cua, ban cua
cua bang » chua bang, cua ban, cua dang
khan ap » khan cap, han ap, khan dam

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc ((hieu manh) or (chieu sach)) - lanh manh cua bang cong tinh khan ap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((hieu manh) OR (chieu sach)) - lanh manh cua bang cong tinh khan ap*.