Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thieu co cua snippets" » "thieu so cua snippets", "thieu o cua snippets", "thieu mot cua snippets", "thieu con cua snippets", "thieu ca cua snippets", "thieu cong 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: (((("thieu co 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: (((("thieu co cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thieu co cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thieu co cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.