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

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

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