Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"kim hoa con snippets" » "kim ho con snippets", "kip hoa con snippets", "kim loai con snippets", "kim hoa cong snippets", "kim hoa co snippets", "kim hoa don 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: (((("kim hoa con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("kim hoa con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( kim hoa con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("kim hoa con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.