Perhaps you should try some spelling variations:
thieu tach » thien hach, chiet tach, chieu sach
hanh trung » thanh trung, hanh trang, manh trung
cua thuong » cua phuong, ca thuong, cua huong
cua truong » cua trung, xuan truong, cac truong
hoc thieu » toc thieu, hoc hien
cong tan » cong san, cong thanh, cong ty
cong tac » cong ty
toan ban » van ban

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

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