Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
quoc bao » quoc oai, hoc bao, quoc va
quoc ban » quoc lan, quoc quan, quoc binh
hieu va » lieu va, hieu qua
anh di » danh di, xanh di, anh d
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
co hoi » co hoc, co loi
va cam » va cham, va cac, va cao
o hoi » o hoc, o hai, o hoa
di su » doi su, ki su, da su

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky nang ((o hoi) or (co hoi)). hieu va cam ((quoc ban) or (quoc bao)) anh di su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang ((o hoi) OR (co hoi)). hieu va cam ((quoc ban) OR (quoc bao)) anh di su triet.
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang ((o hoi) or (co hoi)). hieu va cam ((quoc ban) or (quoc bao)) anh di su triet*.