Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dat quang ho snippets" » "dau quang ho snippets", "dang quang ho snippets", "chat quang ho snippets", "dat quang hoi snippets", "dat quang hoc snippets", "dat quang pho 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: (((("dat quang ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dat quang ho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dat quang ho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dat quang ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.