Perhaps you should try some spelling variations:
tan hanh » tan thanh, tang hanh, toan hanh
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
hanh di » hanh vi, hanh de, hang di
tu san » thu san, tu can, vu san
tu ban » thu ban, te ban
qua ca » qua cac, qua cua, qua cai
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu san) or (tu ban)) ky lang xa hoi. hieu ((qua ca) or (cua cac)) duc tan hanh di cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu san) OR (tu ban)) ky lang xa hoi. hieu ((qua ca) OR (cua cac)) duc tan hanh di cua vat.
• Adding a wildcard symbol may retrieve word variants: ((tu san) or (tu ban)) ky lang xa hoi. hieu ((qua ca) or (cua cac)) duc tan hanh di cua vat*.