Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"hap danh cau snippets" » "hap danh code snippets", "hop danh cau snippets", "han danh cau snippets", "hap dan cau snippets", "hap danh dau snippets", "hap danh ca snippets", "hap danh hau 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: (((("hap danh cau snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hap danh cau snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( hap danh cau snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hap danh cau snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.