Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van hai co snippets" » "van hai code snippets", "van ha co snippets", "van chat co snippets", "van hanh co snippets", "van phai co snippets", "van hai con snippets", "van mai co 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 hai co 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 hai co snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( van hai co snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van hai co snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.