Perhaps you should try some spelling variations:
canh trinh » canh tranh, hanh trinh, canh tinh
trung dung » ung dung, trung uong, trinh dung
dung thang » hung thang, cung thang, dung thuong
hieu lang » chieu sang, hieu quang, nhieu tang
quan dung » quang dung, quan duong, quan dong
thang cau » hang cau, thong cau, thanh chau
hoi hieu » hoi phieu, hoi tieu, moi hieu
qua dung » quang dung, su dung, qua song

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoi hieu lang - canh trinh ((quan dung) or (qua dung)) trung dung thang cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoi hieu lang - canh trinh ((quan dung) OR (qua dung)) trung dung thang cau*.