Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets", "locating bugs code slippers"
"python using java snippets" » "python using data snippets", "python using java slippers"
"hoc viet 5 snippets" » "hoc hien 5 snippets", "hoc viet o snippets", "hoc viet 1 snippets", "hoc viet 2 snippets", "hoc viet 5 slippers"

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: "((((\"hoc viet 5 snippets\") OR (\"python using java snippets\"))) OR (\"locating bugs code snippets\"))~".
• Removing quotes may allow a broader search: (((( hoc viet 5 snippets ) OR ( python using java snippets ))) OR ( locating bugs code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("hoc viet 5 snippets") OR ("python using java snippets"))) OR ("locating bugs code snippets"))*.