Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chi hinh he snippets" » "chi minh he snippets", "thi hinh he snippets", "chi binh he snippets", "chi hinh ha snippets", "chi tinh he snippets", "chi chinh che 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 hinh he 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 hinh he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chi hinh he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chi hinh he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.