Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cau chap doi snippets" » "cau cham doi snippets", "cau chan doi snippets", "cau phap doi snippets", "cau thay doi snippets", "cau cap do snippets", "cau cho doi 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: (((("cau chap doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cau chap doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cau chap doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cau chap doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.