Perhaps you should try some spelling variations:
chat thien » phat trien, cai thien, phat hien
thanh lap » thanh san, phan lap, thanh van
thanh hai » thanh phan, thanh hoa, thanh san
te sach » toc sach
cam tuc » cam xuc, cam tu, nam thuc
y nang » ly nang, v nang, may nang
ma hoi » mai hoi, xa hoi, ma hoa
va cam » va cham, va cac, va cao
tuc va » thuc va, truc va, tuc xa

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 ((y nang) or (ky nang)) ma hoi. lieu va cam tuc va ((thanh lap) OR (thanh hai)) chat thien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((y nang) OR (ky nang)) ma hoi. lieu va cam tuc va ((thanh lap) OR (thanh hai)) chat thien.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((y nang) or (ky nang)) ma hoi. lieu va cam tuc va ((thanh lap) OR (thanh hai)) chat thien".
• Adding a wildcard symbol may retrieve word variants: te sach ((y nang) or (ky nang)) ma hoi. lieu va cam tuc va ((thanh lap) OR (thanh hai)) chat thien*.