Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
hieu van » hieu va, thien van, lieu va
va thanh » gia thanh, va tinh, le thanh
vien cua » viec cua, dien cua, tien cua
cua viet » ca viet, hoa viet, cua vat
nang xa » nang x, lang xa, nang ma
nam xua » nam cua, nam mua, nam qua
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky

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 ky nang xa hoi. hieu van ((cam xuc) or (nam xua)) ((va thanh) or (ban thanh)) vien cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang xa hoi. hieu van ((cam xuc) OR (nam xua)) ((va thanh) OR (ban thanh)) vien cua viet.
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang xa hoi. hieu van ((cam xuc) or (nam xua)) ((va thanh) or (ban thanh)) vien cua viet*.