Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cong sach ca snippets" » "cong sach code snippets", "ong sach ca snippets", "song sach ca snippets", "duong sach ca snippets", "cong sach cap snippets", "cong sach cua snippets", "cong sach xa 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: (((("cong sach ca snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong sach ca snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cong sach ca snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong sach ca snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.