Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"khoa can va snippets" » "khoa cam va snippets", "khoa cap va snippets", "khoi can va snippets", "khoa can van snippets", "khoa canh va snippets", "khoa ban va 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 can va snippets\") OR (\"python using java snippets\"))) OR (\"locating bug core snippets\"))~".
• Removing quotes may allow a broader search: (((( khoa can va snippets ) OR ( python using java snippets ))) OR ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("khoa can va snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))*.