Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"che duoc he snippets" » "che thuoc he snippets", "che do he snippets", "te duoc he snippets", "che duoc ha snippets", "che duoc hoc snippets", "che duoc hoi 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 duoc he 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 duoc he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( che duoc he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("che duoc he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.