Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cua khu cong snippets" » "cua thu cong snippets", "cua thi cong snippets", "cua cuu cong snippets", "cua chu cong snippets", "cua kho cong snippets", "cua phu 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 khu 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 khu cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cua khu cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cua khu cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.