Perhaps you should try some spelling variations:
thanh hai » thanh phan, thanh hoa, thanh san
hanh hai » nhanh hai, hang hai, hanh tai
te sach » toc sach
mai hoi » mai khoi, dai hoi, lai hoi
hieu ve » hieu va, hieu van
sach ky » sac ky, sach y, sach ty
cac duc » cac du, cao duc, cac dac
ve cac » va cac, vien cac
ma hoi » xa hoi, ma hoa, me hoi
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: te sach ky nang ((ma hoi) or (mai hoi)). hieu ve cac duc va ((hanh hai) or (thanh hai)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang ((ma hoi) OR (mai hoi)). hieu ve cac duc va ((hanh hai) OR (thanh hai)) cua te.
• Adding a wildcard symbol may retrieve word variants: te sach ky nang ((ma hoi) or (mai hoi)). hieu ve cac duc va ((hanh hai) or (thanh hai)) cua te*.