Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
tham thuc » nham thuc, pham thuc, tam thuc
thuc dan » thuc hanh, hoc dan, thuc vat
dan hanh » dang hanh, dan khanh, dan thanh
sach ty » sach y, sach tu, sach thu
nang ma » tang ma, sang ma, nang cao
hieu va » lieu va, hieu qua
va tham » van tham, va cham, va thanh
sac ky » cac ky, sai ky
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: thu ((sac ky) or (sach ty)) nang ma hoa. hieu va tham thuc dan hanh vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu ((sac ky) OR (sach ty)) nang ma hoa. hieu va tham thuc dan hanh vi cua triet.
• Adding a wildcard symbol may retrieve word variants: thu ((sac ky) or (sach ty)) nang ma hoa. hieu va tham thuc dan hanh vi cua triet*.