Perhaps you should try some spelling variations:
hoc nganh » hoc nhanh
nganh ky » nganh y, nganh xay, hanh ky
cam thuc » am thuc, nam thuc, cam thu
vat hanh » vat thanh, van hanh, va hanh
vinh cuu » dinh cuu, sinh cua, dinh cu
ky lang » ky nang, ky dang, ky tang
lang ha » long ha
hieu va » lieu va, hieu qua
ha hoi » hoa hoi, ha noi, xa hoi
va cam » va cham, va cac, va cao
vi cuu » vi luu

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc nganh ky lang ha hoi. hieu va cam thuc vat hanh ((vi cuu) or (vinh cuu)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc nganh ky lang ha hoi. hieu va cam thuc vat hanh ((vi cuu) OR (vinh cuu)) tre.
• Adding a wildcard symbol may retrieve word variants: hoc nganh ky lang ha hoi. hieu va cam thuc vat hanh ((vi cuu) or (vinh cuu)) tre*.