Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"trinh cau da snippets" » "trinh cau code snippets", "trinh chat da snippets", "trinh chao da snippets", "trinh tu da snippets", "trinh cau do snippets", "trinh cuu da snippets", "trinh cau ha 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: (((("trinh cau da snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh cau da snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( trinh cau da snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh cau da snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.