Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi thoa con snippets" » "thi hoa con snippets", "thi thu con snippets", "thi thuy con snippets", "thi khoa cong snippets", "thi hoa co snippets", "thi hoa cong 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 thoa con 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 thoa con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi thoa con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi thoa con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.