Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
va thanh » gia thanh, ban thanh, va tinh
te sach » toc sach
ve cham » va cham, ve chat, vu cham
ky tang » ky nang, ky dang, kho tang
ky lang » ky nang, ky dang, tay lang
ha hoi » hoa hoi, ha noi, xa hoi
ve cam » ve cac, va cam, ve cai
cuc te » cua te, cuc thue, cuc tieu

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 lang) OR (ky tang)) ha hoi. hieu ((ve cam) or (ve cham)) tu va thanh tai cuc te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ky lang) OR (ky tang)) ha hoi. hieu ((ve cam) OR (ve cham)) tu va thanh tai cuc te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((ky lang) OR (ky tang)) ha hoi. hieu ((ve cam) or (ve cham)) tu va thanh tai cuc te".
• Adding a wildcard symbol may retrieve word variants: te sach ((ky lang) OR (ky tang)) ha hoi. hieu ((ve cam) or (ve cham)) tu va thanh tai cuc te*.