Perhaps you should try some spelling variations:
thanh trung » thanh tung
trung quan » truong quan, trong quan, trung tuan
quan trong » gian trong
hieu cach » hieu cac, chieu sach, hieu ca
cong nang » cong ngang, cong lang, cong nong
nang phat » nang suat, van phat
hoc hieu » hoc thieu, hoc hien, doc hieu
phat cac » phan cac, pha cac, phap cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hieu cach - thanh trung quan trong cong nang phat cac~.
• Adding a wildcard symbol may retrieve word variants: hoc hieu cach - thanh trung quan trong cong nang phat cac*.