Perhaps you should try some spelling variations:
minh thanh » tinh thanh, hinh thanh, kinh thanh
thiet danh » thien danh, thien anh, thien dang
thuc chung » thuc cung, thuc nhung, thung chung
chung cong » nhung cong, chong cong, phung cong
hoc thiet » hoc thieu, hoc thuyet, hoc hien
minh nhan » minh chanh, minh thang, benh nhan
cong tan » cong tac, cong san, cong thanh
tan phan » toan phan, than phan, van phan
phan lap » phan dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thiet danh - ((minh nhan) or (((minh thanh) OR (dinh thanh)))) thuc chung cong tan phan lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thiet danh - ((minh nhan) OR (((minh thanh) OR (dinh thanh)))) thuc chung cong tan phan lap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thiet danh - ((minh nhan) or (((minh thanh) OR (dinh thanh)))) thuc chung cong tan phan lap".
• Adding a wildcard symbol may retrieve word variants: hoc thiet danh - ((minh nhan) or (((minh thanh) OR (dinh thanh)))) thuc chung cong tan phan lap*.