Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"tao danh do snippets" » "tao danh code snippets", "cao danh do snippets", "tac danh do snippets", "tao anh do snippets", "tao dang do snippets", "tao danh co snippets", "tao danh di snippets"
"python using java snippets" » "python using data 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: (((("tao danh do snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tao danh do snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( tao danh do snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tao danh do snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.