Perhaps you should try some spelling variations:
thieu tang » nhieu tang, thieu khang, thieu quang
nhan luc » nang luc
tu sach » thu sach, su sach, te sach
tang xa » trang xa, tang ma, lang xa
va nhan » van nhan, ca nhan, va phan
va danh » va dan, va hanh, dia danh
va dinh » van dinh, va kinh, va tinh
cuu tre » cau tren, cau treo
cua tre » cua te, cua triet, dua tren

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach thieu tang xa hoi. lieu va nhan luc ((va danh) or (va dinh)) vi ((cuu tre) or (cua tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach thieu tang xa hoi. lieu va nhan luc ((va danh) OR (va dinh)) vi ((cuu tre) OR (cua tre)).
• Adding a wildcard symbol may retrieve word variants: tu sach thieu tang xa hoi. lieu va nhan luc ((va danh) or (va dinh)) vi ((cuu tre) or (cua tre))*.