Perhaps you should try some spelling variations:
thien danh » thien anh, thien dang, thien thanh
thanh phan » thanh pho, thanh san, thanh toan
hoc thien » hoc hien, hoc thieu, hoc thiet
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 » toan phan, thanh pham, thanh nhan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thien danh - tinh toan thuc hung cong ((than phan) OR (thanh phan)) lap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thien danh - tinh toan thuc hung cong ((than phan) OR (thanh phan)) lap*".