Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"che duc thi snippets" » "che duoc thi snippets", "chu duc thi snippets", "chet duoc thi snippets", "che duc thai snippets", "che luc thi snippets", "che duc tho 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: (((("python using java snippets") OR ("che duc thi snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( che duc thi snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("che duc thi snippets"))) or ("locating bug core snippets"))*.