Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"thi van son snippets" » "thi van code snippets", "thi lan son snippets", "thi hanh son snippets", "thi nang son snippets", "thi van dong snippets", "thi van cong snippets", "thi van sung snippets"
"python using data snippets" » "python using java snippets", "python using sat snippets", "python missing data 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: "((((\"thi van son snippets\") OR (\"python using data snippets\"))) OR (\"locating bug core snippets\"))~".
• Removing quotes may allow a broader search: (((( thi van son snippets ) OR ( python using data snippets ))) OR ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("thi van son snippets") OR ("python using data snippets"))) OR ("locating bug core snippets"))*.