Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"kho nam do snippets" » "pho nam do snippets", "ho nam do snippets", "kho cam do snippets", "kho nam dao snippets", "kho nam doi snippets", "kho nam bo 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: (((("kho nam do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("kho nam do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( kho nam do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("kho nam do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.