Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"mat cua toc snippets" » "mat cua code snippets", "ma cua toc snippets", "manh cua toc snippets", "mang cua toc snippets", "mat cua hoc snippets", "mat cua toi snippets", "mat cua tuc 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 toc 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 toc snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( mat cua toc snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mat cua toc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.