Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
nhanh tinh » nhanh thanh, nhan sinh
tieu xanh » tieu danh, chieu xanh, dieu hanh
cong van » cong vang, cong san, song van
van toan » van tuan, van tan, van thanh
toan ban » van ban
va hang » van hang, va nang, va hanh
va lang » va nang, hoa lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu xanh - ((hanh trinh) or (nhanh tinh)) ((va hang) OR (va lang)) cong van toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - ((hanh trinh) OR (nhanh tinh)) ((va hang) OR (va lang)) cong van toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - ((hanh trinh) or (nhanh tinh)) ((va hang) OR (va lang)) cong van toan ban".
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - ((hanh trinh) or (nhanh tinh)) ((va hang) OR (va lang)) cong van toan ban*.