Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"don toan do snippets" » "don toan code snippets", "dan toan do snippets", "mon toan do snippets", "dien toan do snippets", "don toan ho snippets", "don toan co snippets", "don toan du 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 ("don toan do snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"python using java snippets\") OR (\"don toan do snippets\"))) OR (\"locating bug core snippets\"))".
• Removing quotes may allow a broader search: (((( python using java snippets ) OR ( don toan do snippets ))) OR ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") OR ("don toan do snippets"))) OR ("locating bug core snippets"))*.