Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dat hieu cau snippets" » "dat hieu code snippets", "dao hieu cau snippets", "dat tieu cau snippets", "rat nhieu cau snippets", "dat nhieu cau snippets", "dat hieu cac snippets", "dat hieu ca snippets"
"python using java snippets" » "python using data 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 hieu cau snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dat hieu cau snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dat hieu cau snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dat hieu cau snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.