Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"le ninh hoc snippets" » "le sinh hoc snippets", "le hinh hoc snippets", "le tinh hoc snippets", "le dinh hoc snippets", "le minh hoc snippets", "le nin hoc 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: (((("le ninh hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("le ninh hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( le ninh hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("le ninh hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.