Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van tho chi snippets" » "van thao chi snippets", "van thu chi snippets", "van thi chi snippets", "van thon chi snippets", "van ho chi 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: (((("van tho chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van tho chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van tho chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van tho chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.