Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"nhung moi de snippets" » "nhung moi code snippets", "nhung loi de snippets", "nhung noi de snippets", "nhung doi de snippets", "nhung moi den snippets", "nhung moi ve snippets", "nhung moi ke 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: (((("nhung moi de snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhung moi de snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( nhung moi de snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhung moi de snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.