Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cot lai cua snippets" » "con lai cua snippets", "cot loi cua snippets", "cong lai cua snippets", "cot dai cua snippets", "cot hai cua snippets", "cot lai chau 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: (((("cot lai cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cot lai cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cot lai cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cot lai cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.