Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khang cuu he snippets" » "khang cu he snippets", "hang cua he snippets", "hang cau he snippets", "khang cuu che snippets", "khang cuu ve snippets", "khang cuu de 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: (((("khang cuu 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: (((("khang cuu he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khang cuu he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khang cuu he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.