Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"viec day doc snippets" » "viec dat doc snippets", "viec xay doc snippets", "viec hay doc snippets", "viec day hoc snippets", "viec duy doc 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: (((("viec day doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("viec day doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( viec day doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("viec day doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.