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