Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luc tinh cao snippets" » "loc tinh cao snippets", "lac tinh cao snippets", "luc binh cao snippets", "luc tinh lao snippets", "luc tinh chat snippets", "luc tinh 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: (((("luc tinh cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luc tinh cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luc tinh cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc tinh cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.