Perhaps you should try some spelling variations:
thuc chung » thuc cung, thuc nhung, thung chung
hoc thieu » toc thieu, hoc hien
thieu anh » thien anh, chieu xanh, thien danh
thuc dung » thuoc dung, thuy dung, tuc dung
cong than » cong thanh, cong thang, cong tan
cong san » cong tac
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 thieu anh - tinh toan ((thuc dung) or (thuc chung)) ((cong than) or (cong san)) phan lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu anh - tinh toan ((thuc dung) OR (thuc chung)) ((cong than) OR (cong san)) phan lap.
• Adding a wildcard symbol may retrieve word variants: hoc thieu anh - tinh toan ((thuc dung) or (thuc chung)) ((cong than) or (cong san)) phan lap*.