Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
hanh dai » hanh tai, hanh dao, vanh dai
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
van cau » van dau, van hau, van chat
truc va » thuc va, thuc vat, trung va
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
xuc va » duc va, luc va, xac va
tuc va » thuc va, tuc xa, duc va

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 lang xa hoi. hieu van cau ((xuc va) or (((tuc va) OR (truc va)))) hanh dai cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky lang xa hoi. hieu van cau ((xuc va) OR (((tuc va) OR (truc va)))) hanh dai cua vat*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky lang xa hoi. hieu van cau ((xuc va) or (((tuc va) OR (truc va)))) hanh dai cua vat*".