Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thuat li cac snippets" » "thuat di cac snippets", "thuat ly cac snippets", "thuat bai cac snippets", "thuat li ca snippets", "thuat loi cach 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: (((("thuat li cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thuat li cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thuat li cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thuat li cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.