Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dai giao doc snippets" » "dan giao doc snippets", "mai giao doc snippets", "dao giao doc snippets", "dai giao duc snippets", "dai giam doc snippets", "dai gian doc 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: (((("dai giao doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dai giao doc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dai giao doc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dai giao doc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.