Perhaps you should try some spelling variations:
"doi cua hoat snippets" » "doi cua code snippets", "doi qua hoat snippets", "doi chuc hoat snippets", "doi luan hoat snippets", "hoi cua hoat snippets", "dai cua hoat snippets", "dong cua hoat snippets"
"locating bug core snippets" » "locating bug code 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: (((("python using java snippets") OR ("doi cua hoat snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"python using java snippets\") OR (\"doi cua hoat snippets\"))) OR (\"locating bug core snippets\"))".
• Removing quotes may allow a broader search: (((( python using java snippets ) OR ( doi cua hoat snippets ))) OR ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") OR ("doi cua hoat snippets"))) OR ("locating bug core snippets"))*.