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