Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"trinh chu da snippets" » "trinh chu code snippets", "trinh cau da snippets", "trinh cho da snippets", "trinh thuc da snippets", "trinh chu de snippets", "trinh cuu da snippets", "trinh phu da 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 chu 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 chu da snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( trinh chu da snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh chu da snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.