Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
nhung cong » dung cong, thong cong, hang cong
hoc chieu » hoc thieu, ho chieu, hoc hien
trinh vat » trinh van, trinh luat, sinh vat
trinh han » trinh quan
cong san » cong tac
san phan » san pham, van phan, sat phan
phan cau » phan dau, phan cac, phan tu

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 - canh ((trinh vat) or (trinh han)) nhung cong san phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu tinh - canh ((trinh vat) OR (trinh han)) nhung cong san phan cau.
• Adding a wildcard symbol may retrieve word variants: hoc chieu tinh - canh ((trinh vat) or (trinh han)) nhung cong san phan cau*.