Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc song cuu snippets" » "hoc cong cuu snippets", "hoc bong cuu snippets", "hoc hong cuu snippets", "hoc song cua snippets", "hoc song ngu snippets", "hoc cong cu 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 song cuu 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 song cuu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc song cuu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc song cuu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.