Perhaps you should try some spelling variations:
"mat qua cham snippets" » "mat qua code snippets", "mat qua hai snippets", "mat qua cac snippets", "mat va cham snippets", "mat cua cham snippets", "mai qua cham snippets", "sat qua cham snippets"
"locating bug core snippets" » "locating bug code 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: (((("python using java snippets") or ("mat qua cham snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("mat qua cham snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( mat qua cham snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("mat qua cham snippets"))) or ("locating bug core snippets"))*.