Perhaps you should try some spelling variations:
than tai » thanh tai, toan tai, nhan tai
hoc anh » hoc nganh, hoc nhanh, ngoc anh
han tai » hang tai, nhan tai, van tai
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu va, hieu van
hang ca » hang va, nang cao, hang tai
ly hang » ly quang
ve cac » va cac, vien cac
anh ly » anh y, anh le, anh my
ca hoi » cau hoi, cua hoi, xa hoi
tuc va » thuc va, truc va, 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: hoc anh ly hang ca hoi. hieu ve cac ((tuc va) OR (tuc xa)) ((han tai) OR (than tai)) cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc anh ly hang ca hoi. hieu ve cac ((tuc va) OR (tuc xa)) ((han tai) OR (than tai)) cua tre".
• Adding a wildcard symbol may retrieve word variants: hoc anh ly hang ca hoi. hieu ve cac ((tuc va) OR (tuc xa)) ((han tai) OR (than tai)) cua tre*.