Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"can van cong snippets" » "can van code snippets", "can van dong snippets", "can van phong snippets", "can phan cong snippets", "cac van cong snippets", "can ban cong snippets", "tan van 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: (((("can van cong snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("can van cong snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( can van cong snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("can van cong snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.