Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"duoc moi de snippets" » "duoc moi code snippets", "duoc hoi de snippets", "duoc noi de snippets", "duoc tuoi de snippets", "duoc moi den snippets", "duoc moi ve snippets", "duoc 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: (((("duoc 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: (((("duoc moi de snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( duoc moi de snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duoc moi de snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.