Perhaps you should try some spelling variations:
hanh tung » thanh tung, manh tung, hanh dung
trong dan » trong dang, trong san, trong ban
trong tan » trong quan, trong cac, trong ca
tieu van » hieu van, sieu van, lieu van
anh tang » anh bang, anh dang, anh nang
cua dang » cua cong, cua ban
toan cao » toan ban, toan tap

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 van - ((hanh tung) or (anh tang)) cua dang ((trong dan) OR (trong tan)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu van - ((hanh tung) OR (anh tang)) cua dang ((trong dan) OR (trong tan)) toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu van - ((hanh tung) or (anh tang)) cua dang ((trong dan) OR (trong tan)) toan cao".
• Adding a wildcard symbol may retrieve word variants: theo tieu van - ((hanh tung) or (anh tang)) cua dang ((trong dan) OR (trong tan)) toan cao*.