Perhaps you should try some spelling variations:
tieu sach » chieu sach, dien sach, te sach
hanh tang » hanh trang, anh tang, hanh mang
cua thong » cua thuong, cua khong, suat thong
cua tong » cua cong, cua dong, cua nong
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh 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 sach - hanh tang ((cua thong) OR (cua tong)) cong dan toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu sach - hanh tang ((cua thong) OR (cua tong)) cong dan toan cau".
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - hanh tang ((cua thong) OR (cua tong)) cong dan toan cau*.