Perhaps you should try some spelling variations:
cua triet » cua viet, va triet
su triet » su viet, su tien, ve triet
lanh hai » manh hai, thanh hai, lang chai
quoc ban » quoc bao, quoc lan, quoc quan
ky dang » ky nang, ky danh
dang ha » dong ha, dung ha, lang ha
duc ban » duc tan, duc van, dua ban
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
va cam » va cham, va cac, va cao
ha hoi » hoa hoi, ha noi, xa hoi

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 dang ha hoi. lieu va cam ((quoc ban) or (duc ban)) lanh hai ((cua triet) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky dang ha hoi. lieu va cam ((quoc ban) OR (duc ban)) lanh hai ((cua triet) OR (su triet)).
• Adding a wildcard symbol may retrieve word variants: tu sac ky dang ha hoi. lieu va cam ((quoc ban) or (duc ban)) lanh hai ((cua triet) or (su triet))*.