Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duoc chat de snippets" » "doc chat de snippets", "duoc pham de snippets", "hoc chat de snippets", "duoc chat deo snippets", "duoc chat di snippets", "duoc nhat de 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 chat de 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 chat de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duoc chat de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duoc chat de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.