Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"o gian hieu snippets" » "o gian viet snippets", "o van hieu snippets", "o tin hieu snippets", "_ gian hieu snippets", "o gia hieu snippets", "don gian hieu snippets"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("o gian hieu snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( o gian hieu snippets ) or ( python using java snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("o gian hieu snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.