Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cao cong re snippets" » "cac cong re snippets", "cao dang re snippets", "cua cong re snippets", "cao cong ren snippets", "cao cong de snippets", "cao cong ve 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 cong re 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 cong re snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cao cong re snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cao cong re snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.