Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"khoa cong a snippets" » "hoa cong a snippets", "khoe cong a snippets", "hoc cong a snippets", "khoa cong ha snippets", "khoa cong va snippets", "khoa cong ma 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: "((((\"khoa cong a snippets\") OR (\"python using java snippets\"))) OR (\"locating bug core snippets\"))~".
• Removing quotes may allow a broader search: (((( khoa cong a snippets ) OR ( python using java snippets ))) OR ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("khoa cong a snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))*.