Perhaps you should try some spelling variations:
cach thuc » anh thuc, cac thu
trinh ly » trinh ky, trinh do, trinh tu
thuc dan » thuc hanh, hoc dan, thuc vat
dan hanh » dang hanh, dan khanh, dan thanh
hanh lai » hanh lam, hanh tai, thanh lap
tinh ly » dinh ly, minh ly, tich ly
may hoi » may thoi, tay hoi, mai hoi
hieu ve » hieu va, hieu van
ve cach » va cach, ve cac, ve canh
lai cua » dai cua, hai cua, lai chau

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

• Performing a fuzzy search may retrieve terms with similar spellings: so ((((tinh ly) OR (sinh ly))) or (trinh ly)) mang may hoi. hieu ve cach thuc dan hanh lai cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so ((((tinh ly) OR (sinh ly))) OR (trinh ly)) mang may hoi. hieu ve cach thuc dan hanh lai cua vat*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so ((((tinh ly) OR (sinh ly))) or (trinh ly)) mang may hoi. hieu ve cach thuc dan hanh lai cua vat*".