Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"hoc trinh xa snippets" » "doc trinh xa snippets", "hoc tinh xa snippets", "hoc sinh xa snippets", "hoc trinh xay snippets", "hoc trinh xac snippets", "hoc trinh da 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 trinh xa snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"hoc trinh xa snippets\") OR (\"python using java snippets\"))) OR (\"locating bug core snippets\"))".
• Removing quotes may allow a broader search: (((( hoc trinh xa snippets ) OR ( python using java snippets ))) OR ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc trinh xa snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))*.