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