Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cac che cao snippets" » "cac he cao snippets", "cac chien cao snippets", "cac chat cao snippets", "cac che tao snippets", "cac cho cao 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: (((("cac che cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cac che cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cac che cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cac che cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.