Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"duoc dan can snippets" » "duoc dan code snippets", "duc dan can snippets", "duoc ban can snippets", "duoc dai can snippets", "duoc dan chan snippets", "duoc dan canh snippets", "duoc dan 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: (((("duoc dan can 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 dan can snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( duoc dan can snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duoc dan can snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.