Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cach nen cho snippets" » "cac nen cho snippets", "cach ben cho snippets", "cach bien cho snippets", "cach nen co snippets", "cach benh cho snippets", "cach dien cho snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("cach nen cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cach nen cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cach nen cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cach nen cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.