Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dich va due snippets" » "dich vu due snippets", "tich va due snippets", "dinh van due snippets", "dich van due snippets", "dich va de snippets", "dich va du snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

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: (((("dich va due snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dich va due snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dich va due snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dich va due snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.