Perhaps you should try some spelling variations:
thanh hai » thanh phan, thanh hoa, thanh san
tay lang » tai lang, tay tang, tay quang
thanh xi » thanh loi, thanh tai, thanh moi
co viet » so viet, o viet, hoc viet
vuc van » duc van, luc van, thuc van
cam vuc » cam xuc
qua cam » qua cham, qua cac, qua ca
ky dang » ky nang, ky danh
tu dan » tuc dan, tu ban, cu dan

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu dan ((tay lang) or (ky dang)) xa hoi. hieu qua cam vuc van ((thanh xi) OR (thanh hai)) co viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu dan ((tay lang) OR (ky dang)) xa hoi. hieu qua cam vuc van ((thanh xi) OR (thanh hai)) co viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu dan ((tay lang) or (ky dang)) xa hoi. hieu qua cam vuc van ((thanh xi) OR (thanh hai)) co viet".
• Adding a wildcard symbol may retrieve word variants: tu dan ((tay lang) or (ky dang)) xa hoi. hieu qua cam vuc van ((thanh xi) OR (thanh hai)) co viet*.