Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"luc danh cau snippets" » "luc danh code snippets", "luoc danh cau snippets", "luc canh cau snippets", "luan danh cau snippets", "luc danh dau snippets", "luc danh ca snippets", "luc 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: (((("luc 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: (((("luc danh cau snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( luc danh cau snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luc danh cau snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.