Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tich voi cay snippets" » "tich vi cay snippets", "tinh voi cay snippets", "trinh voi cay snippets", "tich voi cac snippets", "tich voi can snippets", "tich doi cay 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: (((("tich voi cay snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tich voi cay snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tich voi cay snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tich voi cay snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.