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