Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cao lap doc snippets" » "cao cap doc snippets", "cao lan doc snippets", "tao lap doc snippets", "cao lap doi snippets", "cao lap dong snippets", "cao phap doc 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 lap 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 lap doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cao lap doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cao lap doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.