Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"nho hieu cac snippets" » "nho hieu code snippets", "nha hieu cac snippets", "nho sieu cac snippets", "nhu hieu cac snippets", "nho hieu luc snippets", "nho hieu va snippets", "nho hieu van 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: (((("nho hieu 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: (((("nho hieu cac snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( nho hieu cac snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nho hieu cac snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.