Perhaps you should try some spelling variations:
canh trinh » canh tranh, hanh trinh, canh tinh
hien hanh » dieu hanh
trinh nha » trinh phan, trinh chat, trinh chao
nha thong » nhan thong, nhat thuong, nghe thong
thong van » trong van, thong va, thong quan
van tan » van tuan, van ban, van tai
tan tap » toan tap, han tap, tan tat

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 hanh - canh trinh nha thong thong van tan tap~.
• Adding a wildcard symbol may retrieve word variants: hoc hien hanh - canh trinh nha thong thong van tan tap*.