Perhaps you should try some spelling variations:
thanh tung » thanh cong
hoc thieu » toc thieu, hoc hien
hang cong » dang cong, hang nong, bang cong
hoc hieu » hoc hien, doc hieu, hoc dieu
cong sat » cong suat, cong san, cong hat
sat phan » sat nhan, vat phan, xuat phan
phan cau » phan dau, phan cac, phan tu
tung va » trung va, tuong va, dung va
va hang » van hang, va nang, va lang

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) or (hoc thieu)) ca - thanh tung va hang cong sat phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc hieu) OR (hoc thieu)) ca - thanh tung va hang cong sat phan cau.
• Adding a wildcard symbol may retrieve word variants: ((hoc hieu) or (hoc thieu)) ca - thanh tung va hang cong sat phan cau*.