Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"cac cau xin snippets" » "cac mau xin snippets", "bac cau xin snippets", "ca cau xin snippets", "cac cau kien snippets", "cac cau vinh snippets", "cac cau hien 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: "((((\"cac cau xin snippets\") OR (\"python using java snippets\"))) OR (\"locating bug core snippets\"))~".
• Removing quotes may allow a broader search: (((( cac cau xin snippets ) OR ( python using java snippets ))) OR ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("cac cau xin snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))*.