Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tap hoa cac snippets" » "tap hop cac snippets", "tap doan cac snippets", "tap toan cac snippets", "tap hoa chat snippets", "tap chon cac 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: (((("tap hoa 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: (((("tap hoa cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tap hoa cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tap hoa cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.