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