Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duoc giao do snippets" » "nuoc giao do snippets", "duc giao do snippets", "duong giao do snippets", "duoc gia do snippets", "duoc giac do snippets", "duoc giao o 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 giao do 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 giao do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duoc giao do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duoc giao do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.