Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"trinh ke toi snippets" » "trinh ke code snippets", "trinh ky toi snippets", "trinh he toi snippets", "trinh ve toi snippets", "trinh ke thi snippets", "trinh ke doi snippets", "trinh ke ton 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 ke toi 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 ke toi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( trinh ke toi snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh ke toi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.