Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh quan » tinh quang, trinh luat, trinh han
quan thong » quang thong, quan trong, xuan thong
thong cong » trong cong, tong cong, thong thong
hien xanh » hien hanh, hien nhanh, chieu xanh
van tan » van tuan, van tai, van thanh

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 xanh - hanh trinh quan thong cong ((van ban) or (van tan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - hanh trinh quan thong cong ((van ban) OR (van tan)) cau.
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - hanh trinh quan thong cong ((van ban) or (van tan)) cau*.