Perhaps you should try some spelling variations:
cham tuc » nham thuc, pham thuc, tham thuc
sang tao » hang tai
hieu ve » hieu va, hieu van
doan vi » doan va, don vi, doan thi
va doan » va doanh, van doan, va dan
ve cham » va cham, ve chat, vu cham
cuu tre » cua tre, cau tren, cau treo
sang ma » tang ma, nang ma, mang may
sac ky » cac ky, sai ky
tuc va » thuc va, truc va, tuc xa
vi cuu » vi luu, vinh cuu
tu sac » tu sach, tu cac, tu san

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 ((sang ma) or (sang tao)) hoi. hieu ve cham tuc va doan vi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky ((sang ma) OR (sang tao)) hoi. hieu ve cham tuc va doan vi cuu tre*.