Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tro dinh chi snippets" » "tri dinh chi snippets", "tro kinh chi snippets", "tro sinh chi snippets", "tro dinh thi snippets", "tro dinh tri snippets", "tro dinh moi 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: (((("tro dinh chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tro dinh chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tro dinh chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tro dinh chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.