Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dao thu cua snippets" » "dao thi cua snippets", "dao phu cua snippets", "dao tru cua snippets", "dao thuc cua snippets", "dao hu cua snippets", "dao tu 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: (((("dao thu 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: (((("dao thu cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dao thu cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dao thu cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.