Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"mat cua he snippets" » "mat cua code snippets", "ma cua he snippets", "manh cua he snippets", "mang cua he snippets", "mat cua che snippets", "mat cua te snippets", "mat cua le 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: (((("mat cua he snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("mat cua he snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( mat cua he snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mat cua he snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.