Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"quat tu cua snippets" » "luat tu cua snippets", "xuat tu cua snippets", "luat tuc cua snippets", "quat hu cua snippets", "quat vu 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: (((("quat tu 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: (((("quat tu cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quat tu cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quat tu cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.