Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
canh trinh » canh tranh, hanh trinh, canh tinh
thong cong » thong thong, phong chong, cong cong
trinh vat » trinh van, trinh luat, sinh vat
tong cong » cong cong, dung cong, dang cong
ho chieu » theo chieu, hoc thieu, doi chieu
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: ho chieu tinh - canh trinh vat ((((thong cong) OR (tong cong))) or (trong cong)) san phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu tinh - canh trinh vat ((((thong cong) OR (tong cong))) OR (trong cong)) san phan cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu tinh - canh trinh vat ((((thong cong) OR (tong cong))) or (trong cong)) san phan cau*".