Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doi bac cau snippets" » "doi ban cau snippets", "doi tac cau snippets", "hoi bac cau snippets", "doi bach cau snippets", "doi ba cau snippets", "doi bac can 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: (((("doi bac cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doi bac cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doi bac cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi bac cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.