Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"hoi trinh vi snippets" » "hoi tinh vi snippets", "doi trinh vi snippets", "hoc trinh vi snippets", "hoi trinh va snippets", "hoi trinh ve snippets", "hoi trinh viet snippets"

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

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