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