Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"nao dung cac snippets" » "nao dung code snippets", "lao dung cac snippets", "nao dang cac snippets", "tao dung cac snippets", "nao luong cac snippets", "nao dung cho snippets", "nao dung tai 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 dung 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: (((("nao dung cac snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( nao dung cac snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nao dung cac snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.