Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
theo chuc » theo chu, tho chu, treo chu
dung cong » dung trong
san thanh » ban thanh, son thanh, dan thanh
van thanh » ban thanh, van tuan
trinh va » trinh van, trinh vat, trinh ve
va dung » van dung, va duong, vat dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chuc nang - hanh trinh va dung cong ((san thanh) OR (van thanh)) hai~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chuc nang - hanh trinh va dung cong ((san thanh) OR (van thanh)) hai".
• Adding a wildcard symbol may retrieve word variants: theo chuc nang - hanh trinh va dung cong ((san thanh) OR (van thanh)) hai*.