Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"luc sach cap snippets" » "luc sach code snippets", "suc sach cap snippets", "nuoc sach cap snippets", "quoc sach cap snippets", "luc sach dao snippets", "luc sach bai snippets", "luc sach xa 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: (((("luc sach cap snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luc sach cap snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( luc sach cap snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc sach cap snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.