Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tuong den ho snippets" » "huong den ho snippets", "tuong dan ho snippets", "thong den ho snippets", "tuong den hoc snippets", "tuong den o snippets", "tuong den do 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: (((("tuong den ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tuong den ho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tuong den ho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tuong den ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.