Perhaps you should try some spelling variations:
canh trinh » canh tranh, hanh trinh, canh tinh
hien manh » hien hanh, tien manh, hien nhanh
hieu manh » chieu xanh, hieu nganh, dieu hanh
trinh vat » trinh van, trinh luat, sinh vat
lang cong » dang cong, bang cong, hang cong
vat lang » va lang, van lang, vat mang
cong dan » cong san, cong tan, huong dan
dan chan » dan gian, dan ca, van chat
chan tu » phan tu, han tu, chon 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 ((hien manh) OR (hieu manh)) - canh trinh vat lang cong dan chan tu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien manh) OR (hieu manh)) - canh trinh vat lang cong dan chan tu*".