Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
nhanh lang » nhanh quang, nhanh thang, nhan dang
nhung cong » dung cong, thong cong, nhung don
hang cong » dang cong, hang nong, bang cong
manh toan » thanh toan, anh tuan, tinh toan
ho chieu » hoc thieu, doi chieu, mot chieu
lang van » dang van, tang van, hoang van
toan cao » toan ban, toan tap

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

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