Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cao det co snippets" » "cao de co snippets", "cao ket co snippets", "cao dieu co snippets", "cao dep co snippets", "cao deu co 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 det co 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 det co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cao det co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cao det co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.