Perhaps you should try some spelling variations:
thanh dat » thanh san, thanh hai, thanh van
de thiet » dan thiet, va thiet, de thi
de triet » ve triet, su triet, de viet
xa thanh » va thanh, ha thanh, ta thanh
ky dang » ky nang, ky danh
dang ha » dong ha, dung ha, lang ha
ve chim » va chim, ve cham, ve chinh
va cham » va chat, va tham
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
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. hieu ((ve chim) or (va cham)) tuc xa thanh dat ((de triet) OR (de thiet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky dang ha hoi. hieu ((ve chim) OR (va cham)) tuc xa thanh dat ((de triet) OR (de thiet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky dang ha hoi. hieu ((ve chim) or (va cham)) tuc xa thanh dat ((de triet) OR (de thiet))".
• Adding a wildcard symbol may retrieve word variants: tu sac ky dang ha hoi. hieu ((ve chim) or (va cham)) tuc xa thanh dat ((de triet) OR (de thiet))*.