Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
thieu anh » thien anh, chieu xanh, thien danh
toan thuc » toan hoc, dan thuc, nhan thuc
thuc hung » thuc chung, thuc nhung, thuc dung
hung cong » nhung cong, hung cuong, phung cong
than phan » thanh phan, thanh pham, thanh nhan
toan phan » thanh phan, toan ban, hoa phan

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