Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using low snippets" » "python using code snippets"
"cau doi trinh snippets" » "cau doc trinh snippets", "cau doi tinh snippets", "cau dong trinh snippets", "cau hoi trinh snippets", "cau do trinh snippets", "cau noi trinh 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: (((("python using low snippets") or ("cau doi trinh snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using low snippets") OR ("cau doi trinh snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using low snippets ) or ( cau doi trinh snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using low snippets") or ("cau doi trinh snippets"))) or ("locating bug core snippets"))*.