Perhaps you should try some spelling variations:
dang khai » dang khoi, quang khai, dang thi
dang hai » hang hai, dung hai, dong hai
nang tai » hang tai, tang tai, sang tai
cua tre » cua te, cuu tre, cua triet
tai hoi » tai khoi, dai hoi, tai hai
su cac » tu cac, su cao, su can
luc va » duc va, tuc va, loc va
ve coc » ve cuoc, ve cac
ve co » vo co, va co, de co

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

• Performing a fuzzy search may retrieve terms with similar spellings: su cac ky nang tai hoi. hieu ((ve coc) or (ve co)) luc va ((dang hai) OR (dang khai)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su cac ky nang tai hoi. hieu ((ve coc) OR (ve co)) luc va ((dang hai) OR (dang khai)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su cac ky nang tai hoi. hieu ((ve coc) or (ve co)) luc va ((dang hai) OR (dang khai)) cua tre".
• Adding a wildcard symbol may retrieve word variants: su cac ky nang tai hoi. hieu ((ve coc) or (ve co)) luc va ((dang hai) OR (dang khai)) cua tre*.