Perhaps you should try some spelling variations:
hanh trung » thanh trung, hanh trang, manh trung
cua thuong » cua truong, cua phuong, ca thuong
hieu tinh » chieu tinh, lieu tinh, kieu tinh
cua thong » cua khong, cua tong, suat thong
cong lang » cong vang, cong luong, cong quang
doc hieu » toc thieu, hoc thieu, hoc hien
ban hanh » ban hang
ban cao » bao cao, ban can, ban co

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu tinh - hanh trung ((cua thong) OR (cua thuong)) cong lang ((ban cao) or (ban hanh))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu tinh - hanh trung ((cua thong) OR (cua thuong)) cong lang ((ban cao) OR (ban hanh)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu tinh - hanh trung ((cua thong) OR (cua thuong)) cong lang ((ban cao) or (ban hanh))".
• Adding a wildcard symbol may retrieve word variants: doc hieu tinh - hanh trung ((cua thong) OR (cua thuong)) cong lang ((ban cao) or (ban hanh))*.