Perhaps you should try some spelling variations:
nhanh mang » nhanh lang, hanh mang, nhanh quang
thang cong » thanh cong, thang long, thong cong
mot chieu » ho chieu
doi chieu » doc hieu, doi chi, ho chieu
van thang » van thanh, van khang, van hang
mang van » dang van, tang van, lang van
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan cau » 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 tieu) or (((mot chieu) or (doi chieu)))) sach - nhanh mang van thang cong tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo tieu) OR (((mot chieu) OR (doi chieu)))) sach - nhanh mang van thang cong tan toan cau.
• Adding a wildcard symbol may retrieve word variants: ((theo tieu) or (((mot chieu) or (doi chieu)))) sach - nhanh mang van thang cong tan toan cau*.