Perhaps you should try some spelling variations:
canh trinh » canh tranh, hanh trinh, canh tinh
thong cong » trong cong, tong cong, thong thong
doi chieu » doc hieu, doi chi, mot chieu
trinh vat » trinh van, trinh luat, sinh vat
vat thong » va thong, vat trong, mat thong
ho chieu » theo chieu, hoc thieu, mot chieu
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: ((ho chieu) OR (doi chieu)) tinh - canh trinh vat thong cong san phan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (doi chieu)) tinh - canh trinh vat thong cong san phan cau*".