Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dung duoc do snippets" » "dung duoc code snippets", "dong duoc do snippets", "cung duoc do snippets", "dung quoc do snippets", "dung duoc dao snippets", "dung duoc co snippets", "dung duoc vo 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: (((("python using java snippets") or ("dung duoc do snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("dung duoc do snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( dung duoc do snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("dung duoc do snippets"))) or ("locating bug core snippets"))*.