Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chon tao cua snippets" » "che tao cua snippets", "cho dao cua snippets", "nhan tao cua snippets", "chon thao cua snippets", "chon tao cu snippets", "chon tro cua snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("chon tao cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chon tao cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chon tao cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chon tao cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.