Perhaps you should try some spelling variations:
tieu danh » dieu danh, tiep danh, thien danh
hanh tang » hanh trang, anh tang, hanh mang
cong van » cong vang, cong san, song van
van tuan » van quan, van ban, anh tuan
tuan ban » tuan bang, toan ban, luan ban
va nang » van nang, cam nang, kha nang
da nang » cam nang, kha nang, cao nang

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 danh - hanh tang ((((va nang) or (phap nang))) or (da nang)) cong van tuan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu danh - hanh tang ((((va nang) OR (phap nang))) OR (da nang)) cong van tuan ban.
• Adding a wildcard symbol may retrieve word variants: theo tieu danh - hanh tang ((((va nang) or (phap nang))) or (da nang)) cong van tuan ban*.