Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khoi ve hoat snippets" » "hoi ve hoat snippets", "khoi de hoat snippets", "khoi he hoat snippets", "khoi va hoat snippets", "khoi che hoat snippets", "khoi van hoat 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: (((("khoi ve hoat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khoi ve hoat snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khoi ve hoat snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khoi ve hoat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.