Perhaps you should try some spelling variations:
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
hieu va » lieu va, hieu qua
xuc van » luc van, xuc ban, thuc van
duc van » duc va, duc tan, duc manh
hanh di » hanh vi, hanh de, hang di
cua tre » cua te, cuu tre, cua triet
tu sac » tu sach, tu cac, tu bac
tu san » thu san, tu ban, tu can
va cam » va cham, va cac, va cao
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 sac) OR (tu san)) ky lang xa hoi. hieu va cam ((xuc van) or (duc van)) hanh di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sac) OR (tu san)) ky lang xa hoi. hieu va cam ((xuc van) OR (duc van)) hanh di cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sac) OR (tu san)) ky lang xa hoi. hieu va cam ((xuc van) or (duc van)) hanh di cua tre".
• Adding a wildcard symbol may retrieve word variants: ((tu sac) OR (tu san)) ky lang xa hoi. hieu va cam ((xuc van) or (duc van)) hanh di cua tre*.