Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"cua va danh snippets" » "cua va dinh snippets", "cua va dan snippets", "cua va hanh snippets", "cua vat danh snippets", "chua va danh snippets", "cua van danh snippets"

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"cua va danh snippets\") OR (\"python using java snippets\"))) OR (\"locating bug core snippets\"))~".
• Removing quotes may allow a broader search: (((( cua va danh snippets ) OR ( python using java snippets ))) OR ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("cua va danh snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))*.