Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cac hat cao snippets" » "cac chat cao snippets", "cac hoat cao snippets", "cau hat cao snippets", "cac hat ca snippets", "cac hat dao 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 hat 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 hat cao snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cac hat cao snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cac hat cao snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.