Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
nam thuc » nam thuoc, am thuc, nam thu
dang hoa » dang hoai, dang khoa, dong hoa
thanh vi » hanh vi, thanh va, thanh ve
hieu van » hieu va, thien van, lieu va
va thanh » gia thanh, ban thanh, va tinh
cuu tre » cua tre, cau tren, cau treo
vu sach » vu bach, su sach, vu khach
sach ty » sach y, sach tu, sach thu
nam xuc » cam xuc, nam xua, nam duoc
hoa hoi » khoa hoi, hoa hoc, hoa doi
ty dang » ty xang, ky dang, ty hang

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach ty dang hoa hoi. hieu van ((nam xuc) or (nam thuc)) va thanh vi ((cuu tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ty dang hoa hoi. hieu van ((nam xuc) OR (nam thuc)) va thanh vi ((cuu tre) OR (cua triet)).
• Adding a wildcard symbol may retrieve word variants: vu sach ty dang hoa hoi. hieu van ((nam xuc) or (nam thuc)) va thanh vi ((cuu tre) or (cua triet))*.