Perhaps you should try some spelling variations:
thanh phan » thanh pho, thanh san, thanh toan
hieu van » hieu va, thien van, lieu va
va thanh » gia thanh, ban thanh, va tinh
phan cua » nhan cua, than cua, phat cua
tu sach » thu sach, su sach, te sach
tu hanh » lu hanh, thuc hanh, thi hanh
du hanh » dieu hanh, duy khanh, luu hanh
van cam » van nam, van lam, van cau
cam duc » cam xuc, cao duc, pham duc
cua tre » cua te, cuu tre, cua triet

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ((tu hanh) or (du hanh)) xa hoi. hieu van cam duc va thanh phan cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((tu hanh) OR (du hanh)) xa hoi. hieu van cam duc va thanh phan cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ((tu hanh) or (du hanh)) xa hoi. hieu van cam duc va thanh phan cua tre*.