Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"danh ca coc snippets" » "danh ca code snippets", "dan ca coc snippets", "doanh cua coc snippets", "danh cho coc snippets", "danh ca cuoc snippets", "danh cay coc snippets", "danh ca cac 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: (((("danh ca coc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("danh ca coc snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( danh ca coc snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("danh ca coc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.