Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc pham cuc snippets" » "hoc phan cuc snippets", "hoc phap cuc snippets", "hoc phat cuc snippets", "hoc pham chuc snippets", "hoc pham duc snippets", "hoc pham cua 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 pham cuc 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 pham cuc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc pham cuc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc pham cuc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.