Perhaps you should try some spelling variations:
lang hoa » hang hoa, lang ha, nang hoa
cham doc » cham soc, chat doc, pham duc
va triet » va thiet, va trien, ve triet
chau doc » chat doc, cau do, phau hoc
cuu tre » cua tre, cau tren, cau treo
ky lang » ky nang, ky dang, ky tang
hoa hoi » khoa hoi, hoa hoc, hoa doi
hieu ve » hieu va, hieu van
dan vi » doan vi, don vi, dan va
tu san » thu san, tu ban, tu can
va dan » ca dan, va dao, va dau
san ky » sang ky, van ky, dan ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu san ky lang hoa hoi. hieu ve ((cham doc) or (chau doc)) va dan vi ((va triet) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu san ky lang hoa hoi. hieu ve ((cham doc) OR (chau doc)) va dan vi ((va triet) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: tu san ky lang hoa hoi. hieu ve ((cham doc) or (chau doc)) va dan vi ((va triet) or (cuu tre))*.