Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"len hoa cho snippets" » "yen hoa cho snippets", "dien hoa cho snippets", "tien hoa cho snippets", "len hoa cheo snippets", "len hoa co snippets", "len hoa ho 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 cho 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 cho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( len hoa cho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("len hoa cho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.