Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khi phan gom snippets" » "chi phan gom snippets", "khi nhan gom snippets", "phi phan gom snippets", "khi phan ngoc snippets", "khi phan mem snippets", "khi phan 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: (((("khi phan gom snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khi phan gom snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khi phan gom snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khi phan gom snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.