Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"theo cua cu snippets" » "thao cua cu snippets", "tho cua cu snippets", "cheo cua cu snippets", "theo cua chu snippets", "theo cua su snippets", "theo cua 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: (((("theo cua cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("theo cua cu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( theo cua cu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("theo cua cu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.