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