Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van hai toan snippets" » "van hai code snippets", "van bai toan snippets", "van hai tan snippets", "van hach toan snippets", "van ha toan snippets", "van chat toan snippets", "van hanh toan 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: (((("python using java snippets") or ("van hai toan snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("van hai toan snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( van hai toan snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("van hai toan snippets"))) or ("locating bug core snippets"))*.