Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cao manh cua snippets" » "cao minh cua snippets", "cao anh cua snippets", "cao danh cua snippets", "cao doanh cua snippets", "cao ban 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: (((("cao manh 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: (((("cao manh cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cao manh cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cao manh cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.