Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
hang cong » dang cong, hang nong, bang cong
theo chu » theo chieu, cho chu, chao chu
ho chieu » theo chieu, hoc thieu, doi chieu
anh tang » anh bang, anh dang, anh nang
tan toan » tan tran, tap toan, van toan
toan cau » toan cao, toan ban, toan tap
tang va » trang va, tang van, thang va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chu) or (ho chieu)) sach - anh tang va ((hang cong) or (thong cong)) tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chu) OR (ho chieu)) sach - anh tang va ((hang cong) OR (thong cong)) tan toan cau.
• Adding a wildcard symbol may retrieve word variants: ((theo chu) or (ho chieu)) sach - anh tang va ((hang cong) or (thong cong)) tan toan cau*.