Perhaps you should try some spelling variations:
cau triet » cau trieu, su triet, cua triet
cham xuc » chat xuc, cham soc, pham duc
thu sach » thuat sach, thuoc sach, thu hoach
hieu ve » hieu va, hieu van
tu sach » su sach, te sach, tu cach
lang xa » lang ha, dang xay, lang van
y lang » o lang, _ lang, tay lang
va dau » va dao
dau de » dau ve, dai de, sau de
de cau » ke cau, le cau, ve cau

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)) y lang xa hoi. hieu ve ((cham xuc) or (cam xuc)) va dau de cau triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) y lang xa hoi. hieu ve ((cham xuc) OR (cam xuc)) va dau de cau triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (thu sach)) y lang xa hoi. hieu ve ((cham xuc) or (cam xuc)) va dau de cau triet".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (thu sach)) y lang xa hoi. hieu ve ((cham xuc) or (cam xuc)) va dau de cau triet*.