Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"hoi dan canh snippets" » "hoi dan code snippets", "hoi van canh snippets", "hoi dan cach snippets", "hoi dan hanh snippets", "hoa dan canh snippets", "hoc dan canh snippets", "hoi dap canh 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: (((("hoi dan canh snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoi dan canh snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( hoi dan canh snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoi dan canh snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.