Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cao bang doc snippets" » "cao dang doc snippets", "cao tang doc snippets", "cao nang doc snippets", "cao bang hoc snippets", "cao ban do 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: (((("cao bang doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cao bang doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cao bang doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cao bang doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.