Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
tham thuc » nham thuc, pham thuc, tam thuc
ban hanh » ban hang
thuc ban » thuoc ban, thuc dan, thu ban
qua tham » qua cham, qua than, qua thanh
xach tay » canh tay
sach ky » sac ky, sach ty, sach kem
nang ma » tang ma, sang ma, nang cao
ma hoi » mai hoi, xa hoi, ma hoa
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((((sach ky) or (sach y))) or (xach tay)) nang ma hoi. hieu qua tham thuc ban hanh vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((sach ky) OR (sach y))) OR (xach tay)) nang ma hoi. hieu qua tham thuc ban hanh vi cua triet.
• Adding a wildcard symbol may retrieve word variants: hoc ((((sach ky) or (sach y))) or (xach tay)) nang ma hoi. hieu qua tham thuc ban hanh vi cua triet*.