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