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