Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"hoc viet da snippets" » "hoc viet code snippets", "hoc hien da snippets", "hoc viet dao snippets", "hoc viet dat snippets", "hoc viet ha snippets"
"python using raw snippets" » "python using real snippets", "python using a snippets", "python using low snippets"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("hoc viet da snippets") OR ("python using raw snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"hoc viet da snippets\") OR (\"python using raw snippets\"))) OR (\"locating bug core snippets\"))".
• Removing quotes may allow a broader search: (((( hoc viet da snippets ) OR ( python using raw snippets ))) OR ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc viet da snippets") OR ("python using raw snippets"))) OR ("locating bug core snippets"))*.