Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van thao con snippets" » "van thao code snippets", "van tham con snippets", "van hao con snippets", "van than con snippets", "van tao con snippets", "van thai cong snippets", "van theo cong snippets"
"python using java snippets" » "python using data snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("van thao con snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van thao con snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( van thao con snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van thao con snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.