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