Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phu san ve snippets" » "phi san ve snippets", "thuy san ve snippets", "phu ban ve snippets", "phu dan ve snippets", "phu san va 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: (((("python using java snippets") or ("phu san ve snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("phu san ve snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( phu san ve snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("phu san ve snippets"))) or ("locating bug code snippets"))*.