Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"luc chat cho snippets" » "luc chat code snippets", "luc nhat cho snippets", "luu chat cho snippets", "muc chat cho snippets", "luc chat co snippets", "luc chat thom snippets", "luc cap cho snippets"
"python using java snippets" » "python using data 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 chat cho snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luc chat cho snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( luc chat cho snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc chat cho snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.