Perhaps you should try some spelling variations:
quan hanh » quan thanh, quang thanh, quang khanh
nuoc quan » nuoc luan, quoc quan, nguoi quan
hieu van » hieu va, thien van, lieu va
cac nuoc » cap nuoc, hoc nuoc, dat nuoc
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
van cac » van hac, van cau, van bac
tu sac » tu sach, tu san, tu bac
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sac) or (tu cac)) ky lang xa hoi. hieu van cac nuoc quan hanh vi ((cua te) or (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sac) OR (tu cac)) ky lang xa hoi. hieu van cac nuoc quan hanh vi ((cua te) OR (cua tu)).
• Adding a wildcard symbol may retrieve word variants: ((tu sac) or (tu cac)) ky lang xa hoi. hieu van cac nuoc quan hanh vi ((cua te) or (cua tu))*.