Perhaps you should try some spelling variations:
"phi anh toan snippets" » "phi anh code snippets", "phi manh toan snippets", "phi anh tuan snippets", "phi thanh toan snippets", "thi anh toan snippets", "chi anh toan snippets", "phi khanh toan snippets"
"locating bug core snippets" » "locating bug code 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 ("phi anh 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 ("phi anh toan snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( phi anh toan snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("phi anh toan snippets"))) or ("locating bug core snippets"))*.