Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"che dao cuoc snippets" » "che dao cuong snippets", "che dao duc snippets", "che va cuoc snippets", "che tao cuoc snippets", "cho dao cuoc snippets", "che do cuoc 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: (((("che dao cuoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("che dao cuoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( che dao cuoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("che dao cuoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.