Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
thuong va » truong va, thuong mai, truong van
thong tan » thong than, thong tran, thong tin
ho chieu » hoc thieu, doi chieu, mot chieu
thong va » thong cua, truong va, thong qua
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 chieu) or (ho chieu)) sach - thanh ((thuong va) OR (thong va)) thong thong tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (ho chieu)) sach - thanh ((thuong va) OR (thong va)) thong thong tan toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) or (ho chieu)) sach - thanh ((thuong va) OR (thong va)) thong thong tan toan cau".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (ho chieu)) sach - thanh ((thuong va) OR (thong va)) thong thong tan toan cau*.