Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van cao cong snippets" » "van cao code snippets", "van cac cong snippets", "van cao dang snippets", "van cua cong snippets", "van dao cong snippets", "van bao cong snippets", "van cau cong snippets"
"python using java snippets" » "python using data snippets"

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

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