Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bui chi cong snippets" » "bui thi cong snippets", "bui cho cong snippets", "bui phi cong snippets", "bai choi cong snippets", "bui thai 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: (((("bui chi cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("bui chi cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bui chi cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bui chi cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.