Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"va cho ke snippets" » "van cho ke snippets", "va co ke snippets", "va che ke snippets", "va cho he snippets", "va cho ky snippets", "va cho xe 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: (((("va cho ke snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("va cho ke snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( va cho ke snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("va cho ke snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.