Perhaps you should try some spelling variations:
danh dau » lanh dao, hang dau, danh tu
hieu ve » hieu va, hieu van
cam loc » cam lo
va danh » va dinh, va dan, va hanh
dau cua » dai cua, day cua, cau cua
cua tre » cua te, cuu tre, cua triet
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky
ve cam » ve cham, ve cac, va cam
loc va » hoc va, luc va
x hoi » o hoi, x ho
5 hoi » o hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sac ky nang ((((x hoi) or (5 hoi))) or (xa hoi)). hieu ve cam loc va danh dau cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky nang ((((x hoi) OR (5 hoi))) OR (xa hoi)). hieu ve cam loc va danh dau cua tre.
• Adding a wildcard symbol may retrieve word variants: te sac ky nang ((((x hoi) or (5 hoi))) or (xa hoi)). hieu ve cam loc va danh dau cua tre*.