Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phat va hoan snippets" » "chat va hoan snippets", "pham va hoan snippets", "phap va hoan snippets", "phat van hoan snippets", "phat va hoa snippets", "phat va hoat 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: (((("phat va hoan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phat va hoan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phat va hoan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phat va hoan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.