Perhaps you should try some spelling variations:
"lochating bug code snippets" » "locating bug code snippets", "lochating bug code slippers", "lochating bug core snippets"
"python using java snippets" » "python using data snippets", "python using java slippers"
"duc hoc dan snippets" » "duoc hoc dan snippets", "luc hoc dan snippets", "du hoc dan snippets", "duc hoc dan slippers"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("duc hoc dan snippets") or ("python using java snippets"))) or ("lochating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duc hoc dan snippets") OR ("python using java snippets"))) OR ("lochating bug code snippets")).
• Removing quotes may allow a broader search: (((( duc hoc dan snippets ) or ( python using java snippets ))) or ( lochating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duc hoc dan snippets") or ("python using java snippets"))) or ("lochating bug code snippets"))*.