Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
dau tren » dau tien, dat tren, dau tieng
te sach » toc sach
nang xa » nang x, lang xa, nang ma
luc gia » luoc gia, duc gia, quoc gia
tai dau » tac dau, tai du, thi dau
va cam » va cham, va cao, va cai

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) or (thu hoach)) ky nang xa hoi. lieu ((va cam) OR (va cac)) luc gia thanh tai dau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (thu hoach)) ky nang xa hoi. lieu ((va cam) OR (va cac)) luc gia thanh tai dau tren*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) or (thu hoach)) ky nang xa hoi. lieu ((va cam) OR (va cac)) luc gia thanh tai dau tren*".