Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi hoai do snippets" » "thi hai do snippets", "thi hoa do snippets", "thi hoan do snippets", "thi hoai duc snippets", "thi hoat doi snippets", "thi hoach do 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: (((("thi hoai 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: (((("thi hoai do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi hoai do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi hoai do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.