Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chi dao cua snippets" » "cho dao cua snippets", "chi dan cua snippets", "thi dao cua snippets", "chi dai cua snippets", "chi day cua 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: (((("chi dao 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: (((("chi dao cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chi dao cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chi dao cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.