Perhaps you should try some spelling variations:
canh trinh » canh tranh, hanh trinh, canh tinh
kieu tinh » lieu tinh, trieu tinh, diep tinh
dung cong » dung trong
trinh va » trinh van, trinh vat, trinh ve
cong dan » cong san, cong tan, huong dan
toan tap » toan ban
toan cao » toan ban
ho kieu » ho lieu, so kieu, thi kieu
va dung » van dung, va duong, vat dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho kieu tinh - canh trinh va dung cong dan ((toan tap) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho kieu tinh - canh trinh va dung cong dan ((toan tap) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: ho kieu tinh - canh trinh va dung cong dan ((toan tap) or (toan cao))*.