Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"chuong gi de snippets" » "chuong gi code snippets", "chuong moi de snippets", "chuong my de snippets", "nhung gi de snippets", "chuong gia de snippets", "chuong ga de snippets", "chuong gi he 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: (((("chuong gi de snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chuong gi de snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( chuong gi de snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chuong gi de snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.