Perhaps you should try some spelling variations:
hanh tai » thanh tai, hang tai, han tai
van hanh » van thanh, ban hanh, van anh
vien da » vien dai, hien dai
tai cua » thai cua, tai cuc, tri cua
thu san » thuy san, thu ban, phu san
xay hoi » xa hoi, tay hoi, cay phoi
xuc van » duc van, luc van, vuc van
tu san » tu ban, tu can, vu san
ve cac » va cac, vien cac
va xay » va xac
cua te » cua tu

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 (thu san)) ly va xay hoi. hieu ((ve cac) or (vien da)) xuc van hanh tai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu san) OR (thu san)) ly va xay hoi. hieu ((ve cac) OR (vien da)) xuc van hanh tai cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu san) OR (thu san)) ly va xay hoi. hieu ((ve cac) or (vien da)) xuc van hanh tai cua te*".