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