Perhaps you should try some spelling variations:
anh thai » anh thi, nhanh thai, tranh thai
lang mai » lang dai, lang hai, lang man
nang mai » nang ma, nang tai, nang cai
cua tre » cua te, cuu tre, cua triet
anh tai » hanh tai, vanh tai, xanh tai
hieu ve » hieu va, hieu van
cac dac » cac dan, cac dai, cac bac
su cac » tu cac, su cao, su can
dac va » duc va, day va, dat va
ve cac » va cac, vien cac

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

• If you are trying to use Boolean operators, they must be ALL CAPS: su cac ky ((nang mai) OR (lang mai)) hoi. hieu ve cac dac va ((anh thai) OR (anh tai)) cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su cac ky ((nang mai) or (lang mai)) hoi. hieu ve cac dac va ((anh thai) OR (anh tai)) cua tre~".
• Adding a wildcard symbol may retrieve word variants: su cac ky ((nang mai) or (lang mai)) hoi. hieu ve cac dac va ((anh thai) OR (anh tai)) cua tre*.