Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khi co ton snippets" » "khi con ton snippets", "khi cu ton snippets", "khi mo ton snippets", "khi co tong snippets", "khi co don snippets", "khi co lon 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: (((("khi co ton snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khi co ton snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khi co ton snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khi co ton snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.