Perhaps you should try some spelling variations:
"don voi chon snippets" » "don voi code snippets", "don voi con snippets", "don voi phong snippets", "don voi chien snippets", "dong voi chon snippets", "doi voi chon snippets", "don vi chon 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 ("don voi chon snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("don voi chon snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( don voi chon snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("don voi chon snippets"))) or ("locating bug core snippets"))*.