Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"thu tu cao snippets" » "thu tu code snippets", "thu tuc cao snippets", "tu tu cao snippets", "thu thuy cao snippets", "thu cu cao snippets", "thu tu cac snippets", "thu 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: (((("thu 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: (((("thu tu cao snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( thu tu cao snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu tu cao snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.