Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"le toan cong snippets" » "le toan code snippets", "le tran cong snippets", "le toan thong snippets", "le doan cuong snippets", "ke toan cong snippets", "le doan cong snippets", "le tuan 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: (((("le toan 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: "((((\"le toan cong snippets\") OR (\"python using java snippets\"))) OR (\"locating bug core snippets\"))".
• Removing quotes may allow a broader search: (((( le toan cong snippets ) OR ( python using java snippets ))) OR ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("le toan cong snippets") OR ("python using java snippets"))) OR ("locating bug core snippets"))*.