Perhaps you should try some spelling variations:
thai thuc » thai thuy, thai tuc, tham thuc
pham thuc » phap thuc, pham chuc, pham thu
nham thuc » nhan thuc, nam thuc, nham thu
hieu van » hieu va, thien van, lieu va
thanh ve » hanh ve, thanh va, thanh vien
va thanh » gia thanh, ban thanh, va tinh
cuu tre » cua tre, cau tren, cau treo
nang ma » tang ma, sang ma, nang cao
ve cuu » ve cau, ve chu, ve cua
tu sai » tu bai, tu san, tu cai
sai ky » sac ky
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sai ky nang ma hoi. hieu van ((thai thuc) or (((pham thuc) or (nham thuc)))) va thanh ve cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ky nang ma hoi. hieu van ((thai thuc) OR (((pham thuc) OR (nham thuc)))) va thanh ve cuu tre.
• Adding a wildcard symbol may retrieve word variants: tu sai ky nang ma hoi. hieu van ((thai thuc) or (((pham thuc) or (nham thuc)))) va thanh ve cuu tre*.