Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cua li cong snippets" » "cua bi cong snippets", "cua li song snippets", "cua lieu cong snippets", "cua vi cong snippets", "cua le cong snippets", "cua ly cong 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: (((("cua li cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cua li cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cua li cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cua li cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.