Perhaps you should try some spelling variations:
mot chieu » doi chieu, ho chieu
hanh tang » hanh trang, anh tang, hanh mang
tang luan » dung luan
hang cong » dang cong, hang nong, thanh cong
bang cong » dang cong, bang song, dung cong
bang thai » ban thai, bang hai, dang thai
theo chu » theo chieu, cho chu, chao chu
thai cao » tai cao, thoai cac, thuat cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((mot chieu) or (theo chu)) sach - hanh tang luan ((hang cong) OR (bang cong)) bang thai cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((mot chieu) OR (theo chu)) sach - hanh tang luan ((hang cong) OR (bang cong)) bang thai cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((mot chieu) or (theo chu)) sach - hanh tang luan ((hang cong) OR (bang cong)) bang thai cao".
• Adding a wildcard symbol may retrieve word variants: ((mot chieu) or (theo chu)) sach - hanh tang luan ((hang cong) OR (bang cong)) bang thai cao*.