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