Perhaps you should try some spelling variations:
thanh lai » thanh hai, thanh lap, thanh loi
cua triet » cua viet, su triet, va triet
cau tren » cu tren, dau tren, ca tren
cam thuc » am thuc, nam thuc, cam thu
thu sach » thuat sach, thuoc sach, thu hoach
va thanh » gia thanh, ban thanh, va tinh
thuc va » thuc vat, thuc dan, thuc day
tu sach » su sach, te sach, tu cach
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
tu nang » tru nang, tu nong, tu nano
ve cam » ve cham, ve cac, va cam

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) or (thu sach)) tu nang xa hoi. hieu ve cam thuc va thanh lai ((cua triet) or (cau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) tu nang xa hoi. hieu ve cam thuc va thanh lai ((cua triet) OR (cau tren)).
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thu sach)) tu nang xa hoi. hieu ve cam thuc va thanh lai ((cua triet) or (cau tren))*.