Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lang chi cua snippets" » "lang chai cua snippets", "lang phi cua snippets", "lang chu cua snippets", "lang chi cuc snippets", "lang khi cua snippets", "lang cuoi 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: (((("lang chi 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: (((("lang chi cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lang chi cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lang chi cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.