Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doc anh hoc snippets" » "doc hanh hoc snippets", "duoc anh hoc snippets", "duc anh hoc snippets", "doc sinh hoc snippets", "doc benh hoc snippets", "doc hinh hoc 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: (((("doc anh hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doc anh hoc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doc anh hoc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doc anh hoc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.