Perhaps you should try some spelling variations:
thanh lai » thanh hai, thanh lap, thanh loi
nang tai » hang tai, tang tai, sang tai
chat luc » chat xuc, chat lua, nhan luc
va thanh » gia thanh, ban thanh, va tinh
vu sach » vu bach, su sach, vu khach
cuu tre » cau tren, cau treo
tai hai » thi hai, dai hai, tai ha
hieu va » lieu va, hieu qua
va chat » van chat, va phat, cao chat
sach ky » sac ky, sach y, sach ty
cua tre » cua triet, dua tren, cua thep
luc va » duc va, tuc va, loc va
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: vu sach ky nang tai hai. hieu va chat luc va thanh lai ((((cua tre) OR (cuu tre))) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ky nang tai hai. hieu va chat luc va thanh lai ((((cua tre) OR (cuu tre))) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ky nang tai hai. hieu va chat luc va thanh lai ((((cua tre) OR (cuu tre))) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: vu sach ky nang tai hai. hieu va chat luc va thanh lai ((((cua tre) OR (cuu tre))) or (cua te))*.