Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
toc chieu » toc thieu, doc hieu, hoc thieu
tranh ban » trinh ban, tranh hang, tranh luan
cong cong » cong dong, trong cong, dung cong
kham phan » phap phan, dam phan, khai pha
ban cong » bang cong, van cong, phan cong

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc chieu tinh - canh tranh ban cong cong ((kham phan) or (kham pha)) bi~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc chieu tinh - canh tranh ban cong cong ((kham phan) OR (kham pha)) bi*.