Perhaps you should try some spelling variations:
thanh trung » thanh tung
thieu tach » thien hach, chiet tach, chieu sach
phan chung » phan cung, phan hung, phan thuong
hoc thieu » toc thieu, hoc hien
ha nhung » hoa nhung, hay nhung, pha nhung
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac
toan tap » toan 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 - thanh trung ((ha nhung) or (phan chung)) ((cong tan) OR (cong san)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tach - thanh trung ((ha nhung) OR (phan chung)) ((cong tan) OR (cong san)) toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu tach - thanh trung ((ha nhung) or (phan chung)) ((cong tan) OR (cong san)) toan tap".
• Adding a wildcard symbol may retrieve word variants: hoc thieu tach - thanh trung ((ha nhung) or (phan chung)) ((cong tan) OR (cong san)) toan tap*.