Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dan luan cha snippets" » "dan luan code snippets", "doanh luan cha snippets", "dung luan cha snippets", "tang luan cha snippets", "dan luan chat snippets", "dan luan chi snippets", "dan luan nha 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: (((("dan luan cha snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan luan cha snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dan luan cha snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan luan cha snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.