Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu cuc da snippets" » "thi cuc da snippets", "thu tuc da snippets", "thu cua da snippets", "thu cuc du snippets", "thu cuu da snippets", "thu cuc do 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 cuc da 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 cuc da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu cuc da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu cuc da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.