Perhaps you should try some spelling variations:
thien danh » thien anh, thien dang, thien thanh
dong thanh » truong thanh
thanh pham » thanh phan, thanh pho, thanh hai
thieu anh » thien anh, chieu xanh, thieu nhi
toan thuc » toan hoc, dan thuc, nhan thuc
thuc hung » thuc chung, thuc nhung, thuc dung
hung dong » huong dong, vung dong, dung dong
pham lap » phan lap, pham lan, pham gap

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 anh) or (thien danh)) - tinh toan thuc hung dong thanh pham lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu anh) OR (thien danh)) - tinh toan thuc hung dong thanh pham lap.
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu anh) or (thien danh)) - tinh toan thuc hung dong thanh pham lap*.