Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc cuu noi snippets" » "hoc huu noi snippets", "hoc cua noi snippets", "hoc cau noi snippets", "hoc cuu hoi snippets", "hoc cuu voi 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: (((("hoc cuu noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoc cuu noi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc cuu noi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc cuu noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.