Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tan van dot snippets" » "tran van dot snippets", "tang van dot snippets", "luan van dot snippets", "tan van do snippets", "tan va dot snippets", "tan van dat 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: (((("tan van dot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tan van dot snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tan van dot snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tan van dot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.