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