Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luc tiep do snippets" » "luc tiem do snippets", "luc tieng do snippets", "truc tiep do snippets", "luc tiep doi snippets", "luc tiep de snippets", "luc tien do 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: (((("luc tiep do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luc tiep do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luc tiep do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc tiep do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.