Perhaps you should try some spelling variations:
van thang » van thanh, van khang, van hang
xach tay » canh tay
hieu kem » hieu ky, hieu ve
thang di » hang di, tang di, thang loi
lang ha » long ha
kem cau » ket cau, ke cau, kem chu
cau hoc » cau hoi, cau hoa, cao hoc
hoc van » hoc dan, hoc va, hoc vat
anh ta » anh tu, anh va, anh tuan
di cua » dai cua, doi cua, de cua
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 ((xach tay) or (anh ta)) lang ha noi. hieu kem cau hoc van thang di cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((xach tay) OR (anh ta)) lang ha noi. hieu kem cau hoc van thang di cua te*.