Perhaps you should try some spelling variations:
dang loai » dan loai, dang hoai, dang loi
loai hoc » logic hoc, loai khoa, dai hoc
pham duy » pham duc
van hanh » van thanh, ban hanh, van anh
hanh dai » hanh tai, hanh dao, vanh dai
ky dang » ky nang, ky danh
hieu tu » chieu tu, hieu tuc, hien tu
tu pham » thu pham, su pham, tu phat
duy van » duy vat, dung van
tu sai » tu bai, tu san, tu cai
sai ky » sac ky
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sai ky dang loai hoc. hieu tu pham duy van hanh dai cua tu~.
• Adding a wildcard symbol may retrieve word variants: tu sai ky dang loai hoc. hieu tu pham duy van hanh dai cua tu*.