Perhaps you should try some spelling variations:
dang tran » dang thanh, quang tran, hoang tran
hieu hieu » hien hieu, hieu hien, thien hieu
cua triet » cua viet, su triet, va triet
nang tao » nang cao, sang tao, nang tai
hieu cac » hieu luc, hieu va, hieu van
tan hanh » tan thanh, tang hanh, toan hanh
hanh dan » thanh dan, hanh san, canh dan
vu sach » vu bach, su sach, vu khach
sach ky » sac ky, sach y, sach ty
cac dac » cac dan, cac dai, cac bac
dac tan » duc tan, dac san, dai tan
dan cua » dan ca, ban cua, dai cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach ky ((dang tran) or (nang tao)) khoi. hieu hieu cac dac tan hanh dan cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ky ((dang tran) OR (nang tao)) khoi. hieu hieu cac dac tan hanh dan cua triet.
• Adding a wildcard symbol may retrieve word variants: vu sach ky ((dang tran) or (nang tao)) khoi. hieu hieu cac dac tan hanh dan cua triet*.