Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duoc tu doi snippets" » "duc tu doi snippets", "duoc sua doi snippets", "duoc tu do snippets", "duoc te doi snippets", "duoc tu di 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: (((("duoc tu doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duoc tu doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duoc tu doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duoc tu doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.