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