Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luan dat hoc snippets" » "luat dat hoc snippets", "luan dac hoc snippets", "luan day hoc snippets", "luan dai hoc snippets", "luan vat hoc snippets", "luan dan 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: (((("luan dat 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: (((("luan dat hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luan dat hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luan dat hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.