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