Perhaps you should try some spelling variations:
tieng trung » truong trung
chieu sach » chinh sach, chiet tach, chieu sang
chieu tinh » trieu tinh, lieu tinh, chau tinh
hanh trinh » canh tranh, hanh chinh
trinh ban » trinh han, trinh san, trinh dan
ban tieng » van tien, ban tinh, va tieng
trung ca » trung cap, truong ca, trung cua
ca chat » cao chat, cac chat, va chat
chat co » thuat co, chat cua, chat deo

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chieu sach) or (chieu tinh)) - hanh trinh ban tieng trung ca chat co~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sach) OR (chieu tinh)) - hanh trinh ban tieng trung ca chat co*.