Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
nuoc van » nuoc va, nuoc san, nuoc dan
luoc van » luoc can, luoc va, luc van
hanh vai » hanh vi, hanh va, hanh tai
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
van dap » van dao, va dap, van dau
vai cua » dai cua, hai cua, lai cua
tu ban » thu ban, te ban
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 ban) or (tu cac)) ky lang xa hoi. hieu van dap ((nuoc van) OR (luoc van)) hanh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu ban) OR (tu cac)) ky lang xa hoi. hieu van dap ((nuoc van) OR (luoc van)) hanh vai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu ban) or (tu cac)) ky lang xa hoi. hieu van dap ((nuoc van) OR (luoc van)) hanh vai cua te".
• Adding a wildcard symbol may retrieve word variants: ((tu ban) or (tu cac)) ky lang xa hoi. hieu van dap ((nuoc van) OR (luoc van)) hanh vai cua te*.