Perhaps you should try some spelling variations:
thuat sach » thuat lanh
thuat san » thuat toan, thuat song, thuat lanh
danh vai » danh sai, danh va, doanh van
hieu van » thien van, lieu va, hieu ve
lo lang » o lang, so lang, le lang
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
cau duc » cao duc, cau luc, chu duc
va danh » va dinh, va dan, va hanh
vai cua » dai cua, hai cua, lai cua
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: ((thuat sach) OR (thuat san)) lo lang xa hoi. ((hieu van) or (hieu va)) cau duc va danh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thuat sach) OR (thuat san)) lo lang xa hoi. ((hieu van) OR (hieu va)) cau duc va danh vai cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thuat sach) OR (thuat san)) lo lang xa hoi. ((hieu van) or (hieu va)) cau duc va danh vai cua te*".