Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"voi can chan snippets" » "voi dan chan snippets", "voi cam chan snippets", "voi ban chan snippets", "voi cac chan snippets", "voi cong chan snippets", "voi hang chan 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: (((("voi can chan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("voi can chan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( voi can chan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("voi can chan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.