Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
nang mai » nang ma, nang tai, lang mai
su triet » su viet, su tien, ve triet
hoc sac » hoc sach, hoc cac, hoc mac
mai hoi » mai khoi, dai hoi, lai hoi
sac ky » cac ky, sai ky
va cam » va cham, va cac, va cao
cua te » cua tu
tuan » quan, tran, luan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc sac ky nang mai hoi. lieu va cam xuc ((van thanh) or (tuan anh)) vi ((cua te) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc sac ky nang mai hoi. lieu va cam xuc ((van thanh) OR (tuan anh)) vi ((cua te) OR (su triet)).
• Adding a wildcard symbol may retrieve word variants: hoc sac ky nang mai hoi. lieu va cam xuc ((van thanh) or (tuan anh)) vi ((cua te) or (su triet))*.