Perhaps you should try some spelling variations:
"nang tu chon snippets" » "nang tu code snippets", "nang du chon snippets", "nang luc chon snippets", "nang tu choi snippets", "nang tu hon snippets", "nang lua 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 ("nang tu 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 ("nang tu chon snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( nang tu chon snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("nang tu chon snippets"))) or ("locating bug core snippets"))*.