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