Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
thuc chung » thuc cung, thuc nhung, thung chung
cuong than » cung than, muong thanh, luong thanh
hoc chieu » hoc thieu, ho chieu, hoc hien
thuc dung » thuoc dung, thuy dung, thuat dung
than phan » thanh phan, toan phan, thanh pham
tuc dung » tac dung, duc dung, thuoc dung
phan cac » nhan cach, phan dau, phan lap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu tinh - tinh toan ((thuc chung) or (((thuc dung) OR (tuc dung)))) cuong than phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu tinh - tinh toan ((thuc chung) OR (((thuc dung) OR (tuc dung)))) cuong than phan cac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu tinh - tinh toan ((thuc chung) or (((thuc dung) OR (tuc dung)))) cuong than phan cac".
• Adding a wildcard symbol may retrieve word variants: hoc chieu tinh - tinh toan ((thuc chung) or (((thuc dung) OR (tuc dung)))) cuong than phan cac*.